美制螺栓标准对照表(20篇)
美制螺栓标准对照表(20篇)美制螺栓标准对照表 美制螺纹标准对照表 美制外螺纹(2A)常用规格极限尺寸表(粗牙)公称尺寸和螺纹系列每英寸牙数8-32(0.164-32)10-24下面是小编为大家整理的美制螺栓标准对照表(20篇),供大家参考。
篇一:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)公称尺寸和螺纹系列每英寸牙数8-32(0.164-32)10-24(0.190-24)12-24(0.216-24)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14UNC(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/8-11(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)10.81530.487612.38500.549513.95730.611315.52700.735318.67660.859221.82370.983024.968211.07690.498512.66190.560914.24690.623415.83440.748219.00430.873122.17670.998025.34929.77900.443511.26490.501612.74060.558914.19610.677317.20340.794620.18280.910023.11409.89840.448511.39190.506812.87270.564414.33580.683217.35330.800920.34290.916823.28678.85190.404111.3410.26410.458712.8011.65100.511914.2713.00230.625517.2815.88770.736820.2718.71470.844623.2221.452823.2720.3217.3314.3212.8411.38代号大径极限最小0.15713.99030.18184.61770.20785.27810.24086.11630.30267.68600.36439.25320.4258最大0.16314.14270.18904.80060.21505.46100.24896.32210.31137.90700.37379.49200.4361中径极限小径max最小0.13993.55350.15864.02840.18454.68630.21275.40260.27126.88850.32878.34900.3850最大0.14283.62710.16194.11230.18794.77270.21645.49660.27526.99010.33318.46070.38970.12483.583.16990.13794.073.50270.16394.724.16310.18765.454.76500.24316.946.17470.29708.407.54380.34859.839.878.446.985.484.754.103.61最小最大螺胚直径
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)公称尺寸和每螺纹系列英寸牙数8-36(0.164-36)10-32(0.190-32)12-28(0.216-28)1/4-28(0.250-28)5/16-24(0.3175-24)3/8-24(0.375-24)7/16-20UNF(0.4375-20)1/2-20(0.50-20)9/16-18(0.5625-18)5/8-18(0.625-18)3/4-16(0.750-16)7/8-14(0.875-14)1"-12(1.000-12)10.87370.490612.46120.552414.03100.614915.61850.739118.77310.863121.92270.986825.064711.07950.498712.66700.561114.25190.623615.83940.748519.01190.873422.18440.998225.354310.14730.461911.73230.520513.22070.582814.80310.702917.85370.821620.86860.938223.830310.25400.466211.84150.525013.33500.587514.92250.707917.98070.827021.00580.944123.98019.52250.437411.7811.11000.492913.2712.51970.555414.8514.10720.671817.9117.06370.785820.9319.95930.896023.9022.758423.9520.9717.9514.8913.3111.82代号大径极限最小0.15774.00560.18314.65070.20855.29590.24256.15950.30427.72670.36679.31420.4281最大0.16324.14530.18914.80310.21505.46100.24906.32460.31147.90960.37399.49710.4362中径极限小径max最小0.14243.61700.16584.21130.18864.79040.22255.65150.28067.12720.34308.71220.3995最大0.14523.68810.16884.28750.19184.87170.22585.73530.28437.22120.34688.80870.40370.12913.653.27910.15084.243.83030.17124.824.34850.20525.695.21210.26037.176.61160.32288.758.19910.374910.1910.238.787.205.714.854.273.67最小最大螺胚直径
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)公称尺寸和每螺纹系列英寸牙数8-32(0.164-32)10-24(0.190-24)12-24(0.216-24)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14UNC(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/8-11(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)9.14400.417010.59180.472011.98880.527013.38580.642016.30680.755019.17700.865021.97109.55040.434011.02360.490012.44600.546013.86840.663016.84020.778019.76120.890022.60609.93390.450011.43000.508412.91340.566014.37640.685017.39900.802820.39110.918823.337510.08890.456511.59510.515213.08610.573214.55930.692717.59460.811020.59940.927623.561011.11250.500010.6512.70000.562512.0514.28750.625013.4515.87500.750016.4019.05000.875019.3022.22501.000022.1025.400022.4019.6016.7013.7012.3010.90代号小径极限最小0.13003.30200.14503.68300.17104.34340.19604.97840.25206.40080.30707.79780.3600最大0.13903.53060.15603.96240.18104.59740.20705.25780.26506.73100.32108.15340.3760中径极限大径min最小0.14373.65000.16294.13770.18894.79810.21755.52450.27647.02060.33448.49380.3911最大0.14753.74650.16724.24690.19334.90980.22245.64900.28177.15520.34018.63850.39720.16403.404.16560.19003.754.82600.21604.405.48640.25005.056.35000.31256.457.93750.37507.859.52500.43759.209.408.006.605.204.553.903.50最小最大底孔直径
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)公称尺寸和每螺纹系列英寸牙数8-36(0.164-36)10-32(0.190-32)12-28(0.216-28)1/4-28(0.250-28)5/16-24(0.3175-24)3/8-24(0.375-24)7/16-20UNF(0.4375-20)1/2-20(0.50-20)9/16-18(0.5625-18)5/8-18(0.625-18)3/4-16(0.750-16)7/8-14(0.875-14)1"-12(1.000-12)9.72820.446011.32840.502012.75080.565014.35100.682017.32280.798020.26920.910023.114010.03300.457011.60780.515013.08100.578014.68120.696017.67840.814020.67560.928023.571210.28700.467511.87450.526413.37060.588914.95810.709418.01880.828621.04640.945924.025910.42420.473112.01670.532313.52040.594915.11050.715918.18390.835621.22420.953524.218911.11250.500011.4012.70000.562512.8514.28750.625014.4515.87500.750017.4019.05000.875020.3522.22501.000023.9025.400023.9520.9717.9514.8913.3111.82代号小径极限最小0.13403.40360.15603.96240.17704.49580.21105.35940.26706.78180.33008.38200.3830最大0.14203.60680.16404.16560.18604.72440.22005.58800.27707.03580.34008.63600.3950中径极限大径min最小0.14603.70840.16974.31040.19284.89710.22685.76070.28547.24920.34798.83670.4050最大0.14963.79980.17364.40940.19705.00380.23115.86990.29027.37110.35288.96110.41040.16403.454.16560.19004.004.82600.21604.555.48640.25005.406.35000.31256.857.93750.37508.459.52500.43759.8510.238.787.205.714.854.273.67最小最大底孔直径
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或0.190-32UNF-2B)、3/8-24UNF-2B(或0.375-24UNF-2B)
篇二:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和螺纹系列
大径极限
中径极限
每英寸牙数代号最小
最大
最小
最大
8-32(0.164-32)
10-24(0.190-24)
12-24(0.216-24)
1/4-20(0.250-20)
5/16-18(0.3175-18)
3/8-16(0.375-16)
7/16-14(0.4375-14)
1/2-13(0.50-13)
9/16-12(0.5625-12)
5/8-11(0.625-11)
3/4-10(0.750-10)
7/8-9(0.875-9)
1"-8(1.000-8)
UNC
0.157
0.163
0.1390.1428
1]3.99014.14293.553
3.6271
30].18170.18950.158
0.1619
8]4.61704.80064.028:4.1123
70].20760.21540.184
0.1879
8]5.27805.46154.686
4.7727
10'.24000.24830.212
0.2164
8]6.11696.32275.402P5.4966
30].30210.31160.271
0.2752
67|.68637.90726.888
6.9901
0]0.36400.37350.328
0.3331
39.25379.49278.349—8.4607
20|.42500.43600.385810|.815111.07609.779
0.38979.8984
30'.48790.49800.443:0.4485
61]2.385512.661511.264—11.3919
0]0.54990.56090.5015131.957914.246612.740
0.506812.872
301.61190.62360.5587:0.5644
315].527415.834914.196
0)0.73540.74810.677
318'.676219.004317.203
14.3358
0.683217.353
601.85930.87340.79430.80092211.823122.176620.18220.342
7]0.98370.99880.91090.91680241.968025.349023.11423.286
2
2
0
7
小径max
0.12483.16990.13793.50270.16394.16310.18764.76500.24316.1747
0.29707.5438
0.34858.85190.404110.2641
0.458711.6510
0.511913.0023
0.625515.8877
0.736818.7147
0.844621.4528
|
螺胚直径
最小
最大
3.58
3.61
4.07
4.10
4.72
4.75
5.45
5.48
6.94
6.98
8.40
8.44
9.83
9.87
11.3411.38
12.8012.84
14.2714.32
17.2817.33
20.2720.32
23.2223.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证2.标记示例:10-24UNC-2A或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
公称尺寸和每英寸牙数
8-36(0.164-36)
10-32(0.190-32)
12-28(0.216-28)
1/4-28(0.250-28)
5/16-24(0.3175-24)
3/8-24(0.375-24)
7/16-20(0.4375-20)
1/2-20(0.50-20)
9/16-18(0.5625-18)
5/8-18(0.625-18)
3/4-16(0.750-16)
7/8-14(0.875-14)
1"-12
(1.000-12)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
螺纹系列代
大径极限
号
最小
最大
中径极限
最小
最大
UNF
0.157
0.163
0.142
0.145
74.00524.14543.61723.6881
60.18330.18900.165
0.168
14.65014.80384.21184.287
70.20810.21530.18850.191
55.29505.46164.79084.871
90.2420:0.249040.22270.225
56.159
6.32455.65185.735
50.30460.31150.28030.284
27.72647.90967.12737.221
70.3666P0.373920.34320.346
79.314
9.49708.71288.808
20.42810.43620.39970.403
110.873211.079510.147710.254
70.49050.49830.46100.466
612.461712.667911.732211.841
20.55200.56130.52050.525
414.031114.251513.220013.335
00.6149P0.623670.58200.587915.61815.839814.803514.922
50.73940.74810.70250.707
118.773519.011917.853917.980
10.8639P0.873470.82170.827
篇三:美制螺栓标准对照表
美制螺纹标准对照表
-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙
数
螺纹系列代号
大径极限
最小
最大
中径极限
最小
最大
8-32
小径max
螺胚直径最小最大
10-24
12-24
1/4-20
5/16-18
3/8-16
7/16-141/2-13
UNC
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或、3/8-16UNC-2A(或(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
大径极限
中径极限
每英寸牙数列代号最小
最大
最小
最大
8-36
UNF
小径max
螺胚直径最小最大
10-3212-281/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-167/8-141"-12
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或、3/8-24UNF-2A(或
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每螺纹系列
小径极限
中径极限
英寸牙数
代号
最小
最大
最小
最大
8-32
10-2412-24
UNC
大径min
底孔直径
最小
最大
1/4-205/16-183/8-167/16-141/2-139/16-125/8-113/4-10
7/8-91"-8
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或、3/8-16UNC-2B(或
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
小径极限
中径极限
每英寸牙数列代号最小
最大
最小
最大
8-36
大径min
底孔直径最小最大
10-32
12-28UNF
1/4-28
5/16-24
3/8-24
7/16-201/2-209/16-185/8-183/4-167/8-141"-12
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或、3/8-24UNF-2B(或
篇四:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英螺纹系列大径极限
寸牙数
代号
最小最大
中径极限最小最大
小径max
螺胚直径最小最大
8-32(0.164-32)
0.15710.16310.13990.14280.12483.583.61
3.99034.14273.55353.62713.1699
10-24(0.190-24)
0.18180.18900.15860.16190.13794.074.10
4.61774.80064.02844.11233.5027
12-24(0.216-24)
0.20780.21500.18450.18790.16394.724.75
5.27815.46104.68634.77274.1631
1/4-20(0.250-20)
0.24080.24890.21270.21640.18765.455.48
6.11636.32215.40265.49664.7650
5/16-18(0.3175-18)
0.30260.31130.27120.27520.24316.946.98
7.68607.90706.88856.99016.1747
3/8-16
UNC
0.36430.37370.32870.33310.2970
8.408.44
(0.375-16)
9.25329.49208.34908.46077.5438
7/16-14(0.4375-14)
0.42580.43610.38500.38970.34859.839.87
10.815311.07699.77909.89848.8519
1/2-13(0.50-13)
0.48760.49850.44350.44850.404111.3411.38
12.385012.661911.264911.391910.2641
9/16-12(0.5625-12)
0.54950.56090.50160.50680.458712.8012.84
13.957314.246912.740612.872711.6510
5/8-11(0.625-11)
0.61130.62340.55890.56440.511914.2714.32
15.527015.834414.196114.335813.0023
3/4-10
0.73530.74820.67730.68320.625517.2817.33
(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)
18.676619.004317.203417.353315.8877
0.85920.87310.79460.80090.736820.2720.32
21.823722.176720.182820.342918.7147
0.98300.99800.91000.91680.844623.2223.27
24.968225.349223.114023.286721.4528
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和每英螺纹系列大径极限
寸牙数
代号
最小最大
中径极限最小最大
小径max
螺胚直径最小最大
8-36(0.164-36)
0.15770.16320.14240.14520.12913.653.67
4.00564.14533.61703.68813.2791
10-32
0.18310.18910.16580.16880.1508
4.244.27
(0.190-32)
4.65074.80314.21134.28753.8303
UNF
12-28
0.20850.21500.18860.19180.1712
4.824.85
(0.216-28)
5.29595.46104.79044.87174.3485
1/4-28(0.250-28)
0.24250.24900.22250.22580.20525.695.71
6.15956.32465.65155.73535.2121
5/16-24(0.3175-24)3/8-24(0.375-24)7/16-20(0.4375-20)1/2-20(0.50-20)9/16-18(0.5625-18)5/8-18(0.625-18)3/4-16(0.750-16)7/8-14(0.875-14)1"-12(1.000-12)
0.30420.31140.28060.28430.26037.177.20
7.72677.90967.12727.22126.6116
0.36670.37390.34300.34680.32288.758.78
9.31429.49718.71228.80878.1991
0.42810.43620.39950.40370.374910.1910.23
10.873711.079510.147310.25409.5225
0.49060.49870.46190.46620.437411.7811.82
12.461212.667011.732311.841511.1100
0.55240.56110.52050.52500.492913.2713.31
14.031014.251913.220713.335012.5197
篇五:美制螺栓标准对照表
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美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙螺纹系
大径极限
数
列代号最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-32(0.164-32)
0.15710.16310.13990.14283.99034.14273.55353.6271
0.12483.1699
3.58
3.61
10-24(0.190-24)
0.18180.18900.15860.16194.61774.80064.02844.1123
0.13793.5027
4.07
4.10
12-24(0.216-24)
0.20780.21500.18450.18795.27815.46104.68634.7727
0.16394.1631
4.72
4.75
1/4-20(0.250-20)
0.24080.24890.21270.21646.11636.32215.40265.4966
0.18764.7650
5.45
5.48
5/16-18(0.3175-18)
0.30260.31130.27120.27527.68607.90706.88856.9901
0.24316.1747
6.94
6.98
3/8-16(0.375-16)
0.36430.37370.32870.33319.25329.49208.34908.4607
0.29707.5438
8.40
8.44
7/16-14(0.4375-14)
UNC
0.425810.8153
0.436111.0769
0.38509.7790
0.38979.8984
0.34858.8519
9.83
9.87
1/2-13(0.50-13)
0.48760.49850.44350.448512.385012.661911.264911.3919
0.404110.2641
11.34
11.38
9/16-12(0.5625-12)
0.54950.56090.50160.506813.957314.246912.740612.8727
0.458711.6510
12.80
12.84
5/8-11(0.625-11)
0.61130.62340.55890.564415.527015.834414.196114.3358
0.511913.0023
14.27
14.32
3/4-10(0.750-10)
0.73530.74820.67730.683218.676619.004317.203417.3533
0.625515.8877
17.28
17.33
7/8-9(0.875-9)
0.85920.87310.79460.800921.823722.176720.182820.3429
0.736818.7147
20.27
20.32
1"-8(1.000-8)
0.98300.99800.91000.916824.968225.349223.114023.2867
0.844621.4528
23.22
23.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。
2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)
(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系大径极限每英寸牙数列代号最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-36(0.164-36)
0.15770.16320.14240.14524.00564.14533.61703.6881
0.12913.2791
3.65
3.67
10-32(0.190-32)
UNF
0.18314.6507
0.18914.8031
0.16584.2113
0.16884.2875
0.15083.8303
4.24
4.27
12-28(0.216-28)
0.20850.21500.18860.19185.29595.46104.79044.8717
0.17124.3485
4.82
4.85
1
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1/4-28(0.250-28)
0.24250.24900.22250.22586.15956.32465.65155.7353
0.20525.2121
5.69
5.71
5/16-24(0.3175-24)
0.30420.31140.28060.28437.72677.90967.12727.2212
0.26036.6116
7.17
7.20
3/8-24(0.375-24)
0.36670.37390.34300.34689.31429.49718.71228.8087
0.32288.1991
8.75
8.78
7/16-20(0.4375-20)
0.42810.43620.39950.403710.873711.079510.147310.2540
0.37499.5225
10.19
10.23
1/2-20(0.50-20)
0.49060.49870.46190.466212.461212.667011.732311.8415
0.437411.1100
11.78
11.82
9/16-18(0.5625-18)
0.55240.56110.52050.525014.031014.251913.220713.3350
0.492912.5197
13.27
13.31
5/8-18(0.625-18)
0.61490.62360.58280.587515.618515.839414.803114.9225
篇六:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常见规格极限尺寸表(粗牙)
公称尺寸
螺纹系
和每英寸牙
数
列代号
大径极限最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-32(0.164-32)
0.15713.9903
0.16314.1427
0.13993.5535
0.14283.6271
0.12483.583.61
3.1699
10-24(0.190-24)
0.18184.6177
0.18904.8006
0.15864.0284
0.16194.1123
0.13794.074.10
3.5027
12-24(0.216-24)
0.20785.2781
0.21505.4610
0.18454.6863
0.18794.7727
0.16394.724.75
4.1631
1/4-20(0.250-20)
0.24086.1163
0.24896.3221
0.21275.4026
0.21645.4966
0.18765.455.48
4.7650
5/16-18
0.30260.31130.27120.27520.2431
(0.3175-18)
7.68607.90706.88856.9901
6.946.986.1747
3/8-16(0.375-16)
0.36439.2532
0.37379.4920
0.32878.3490
0.33318.4607
0.29708.408.44
7.5438
7/16-14
0.42580.43610.38500.38970.3485
(0.4375-14UNC10.815311.0769
)
9.7790
9.8984
9.839.878.8519
1/2-13(0.50-13)
0.48760.49850.44350.44850.404111.3411.38
12.385012.661911.264911.391910.2641
9/16-12
0.54950.56090.50160.50680.4587
(0.5625-12)
12.8012.8413.957314.246912.740612.872711.6510
5/8-11(0.625-11)
0.61130.62340.55890.56440.511914.2714.32
15.527015.834414.196114.335813.0023
3/4-10(0.750-10)
0.73530.74820.67730.68320.625517.2817.33
18.676619.004317.203417.353315.8877
7/8-9(0.875-9)
0.85920.87310.79460.80090.736820.2720.32
21.823722.176720.182820.342918.7147
1"-8(1.000-8)
0.98300.99800.91000.91680.844623.2223.27
24.968225.349223.114023.286721.4528
1.螺胚直径指滚丝前尺寸,数值为依经验公式计算而得,在实践中需验证。2.标识示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常见规格极限尺寸表(细牙)
公称尺寸和螺纹系
大径极限
每英寸牙数列代号最小
最大
中径极限
最小
最大
螺胚直径小径max
最小最大
8-36(0.164-36)
0.15774.0056
0.16324.1453
0.14243.6170
0.14523.6881
0.12913.65
3.2791
3.67
10-32(0.190-32)
0.18314.6507
0.18914.8031
0.16584.2113
0.16884.2875
0.15084.24
3.8303
4.27
12-28(0.216-28)
0.20855.2959
0.21505.4610
0.18864.7904
0.19184.8717
0.17124.82
4.3485
4.85
1/4-28(0.250-28)
0.24256.1595
0.24906.3246
0.22255.6515
0.22585.7353
0.20525.69
5.2121
5.71
5/16-24
0.30420.31140.28060.28430.2603
(0.3175-24)
7.72677.90967.12727.2212
7.177.206.6116
3/8-24(0.375-24)
0.36679.3142
0.37399.4971
0.34308.7122
0.34688.8087
0.32288.75
8.1991
8.78
7/16-20
0.42810.43620.39950.40370.3749
(0.4375-20UNF10.873711.079510.147310.2540
)
10.1910.239.5225
1/2-20(0.50-20)
0.49060.49870.46190.46620.437411.7811.82
12.461212.667011.732311.841511.1100
9/16-18
0.55240.56110.52050.52500.4929
(0.5625-18)
13.2713.3114.031014.251913.220713.335012.5197
5/8-18(0.625-18)
0.61490.62360.58280.58750.555414.8514.89
篇七:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙
数
螺纹系列代号
大径极限最小最大
中径极限
最小
最大
螺胚直径小径max最小最大
8-32(0.164-32)
0.15710.16310.13990.14283.99034.14273.55353.6271
0.12483.1699
3.58
3.61
10-24(0.190-24)
0.18180.18900.15860.16194.61774.80064.02844.1123
0.13793.5027
4.07
4.10
12-24(0.216-24)
0.20780.21500.18450.18795.27815.46104.68634.7727
0.16394.1631
4.72
4.75
1/4-20(0.250-20)
0.24080.24890.21270.21646.11636.32215.40265.4966
0.18764.7650
5.45
5.48
5/16-18(0.3175-18)
0.30260.31130.27120.27527.68607.90706.88856.9901
0.24316.1747
6.94
6.98
3/8-16(0.375-16)
0.36430.37370.32870.33319.25329.49208.34908.4607
0.29707.5438
8.40
8.44
7/16-14(0.4375-14)
UNC
0.425810.8153
0.436111.0769
0.38509.7790
0.38979.8984
0.34858.8519
9.83
9.87
1/2-13(0.50-13)
0.48760.49850.44350.448512.385012.661911.264911.3919
0.404110.2641
11.34
11.38
9/16-12(0.5625-12)
0.54950.56090.50160.506813.957314.246912.740612.8727
0.458711.6510
12.80
12.84
5/8-11(0.625-11)
0.61130.62340.55890.564415.527015.834414.196114.3358
0.511913.0023
14.27
14.32
3/4-10(0.750-10)
0.73530.74820.67730.683218.676619.004317.203417.3533
0.625515.8877
17.28
17.33
7/8-9(0.875-9)
0.85920.87310.79460.800921.823722.176720.182820.3429
0.736818.7147
20.27
20.32
1"-8(1.000-8)
0.98300.99800.91000.916824.968225.349223.114023.2867
0.844621.4528
23.22
23.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系大径极限每英寸牙数列代号最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-36(0.164-36)
0.15770.16320.14240.14524.00564.14533.61703.6881
0.12913.2791
3.65
3.67
10-32(0.190-32)
0.18310.18910.16580.16884.65074.80314.21134.2875
0.15083.8303
4.24
4.27
12-28(0.216-28)
0.20850.21500.18860.19185.29595.46104.79044.8717
0.17124.3485
4.82
4.85
1/4-28(0.250-28)
0.24250.24900.22250.22586.15956.32465.65155.7353
0.20525.2121
5.69
5.71
5/16-24(0.3175-24)
0.30420.31140.28060.28437.72677.90967.12727.2212
0.26036.6116
7.17
7.20
3/8-24(0.375-24)
0.36670.37390.34300.34689.31429.49718.71228.8087
0.32288.1991
8.75
8.78
7/16-20(0.4375-20)
UNF
0.428110.8737
0.436211.0795
0.399510.1473
0.403710.2540
0.37499.5225
10.19
10.23
1/2-20(0.50-20)
0.49060.49870.46190.466212.461212.667011.732311.8415
0.437411.1100
11.78
11.82
9/16-18(0.5625-18)
0.55240.56110.52050.525014.031014.251913.220713.3350
0.492912.5197
13.27
13.31
5/8-18(0.625-18)
0.61490.62360.58280.587515.618515.839414.803114.9225
0.555414.1072
14.85
14.89
3/4-16(0.750-16)
0.73910.74850.70290.707918.773119.011917.853717.9807
0.671817.0637
17.91
17.95
7/8-14(0.875-14)
0.86310.87340.82160.827021.922722.184420.868621.0058
0.785819.9593
20.93
20.97
1"-12(1.000-12)
0.98680.99820.93820.944125.064725.354323.830323.9801
0.896022.7584
23.90
23.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和螺纹系小径极限每英寸牙数列代号最小最大
中径极限
最小
最大
大径min
底孔直径最小最大
8-32(0.164-32)
0.13000.13900.14370.14753.30203.53063.65003.7465
0.16404.1656
3.40
3.50
10-24(0.190-24)
0.14500.15600.16290.16723.68303.96244.13774.2469
0.19004.8260
3.75
3.90
12-24(0.216-24)
0.17100.18100.18890.19334.34344.59744.79814.9098
0.21605.4864
4.40
4.55
1/4-20(0.250-20)
0.19600.20700.21750.22244.97845.25785.52455.6490
0.25006.3500
5.05
5.20
5/16-18(0.3175-18)
0.25200.26500.27640.28176.40086.73107.02067.1552
0.31257.9375
6.45
6.60
3/8-16(0.375-16)
0.30700.32100.33440.34017.79788.15348.49388.6385
0.37509.5250
7.85
8.00
7/16-14(0.4375-14)
UNC
0.36009.1440
0.37609.5504
0.39110.39729.933910.0889
0.437511.1125
9.20
9.40
1/2-13(0.50-13)
0.41700.43400.45000.456510.591811.023611.430011.5951
0.500012.7000
10.65
10.90
9/16-12(0.5625-12)
0.47200.49000.50840.515211.988812.446012.913413.0861
0.562514.2875
12.05
12.30
5/8-11(0.625-11)
0.52700.54600.56600.573213.385813.868414.376414.5593
0.625015.8750
13.45
13.70
3/4-10(0.750-10)
0.64200.66300.68500.692716.306816.840217.399017.5946
0.750019.0500
16.40
16.70
7/8-9(0.875-9)
0.75500.77800.80280.811019.177019.761220.391120.5994
0.875022.2250
19.30
19.60
1"-8(1.000-8)
0.86500.89000.91880.927621.971022.606023.337523.5610
1.000025.4000
22.10
22.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系小径极限每英寸牙数列代号最小最大
中径极限
最小
最大
大径min
底孔直径最小最大
8-36(0.164-36)
0.13400.14200.14600.14963.40363.60683.70843.7998
0.16404.1656
3.45
3.67
10-32(0.190-32)
0.15600.16400.16970.17363.96244.16564.31044.4094
0.19004.8260
4.00
4.27
12-28(0.216-28)
0.17700.18600.19280.19704.49584.72444.89715.0038
0.21605.4864
4.55
4.85
1/4-28(0.250-28)
0.21100.22000.22680.23115.35945.58805.76075.8699
0.25006.3500
5.40
5.71
5/16-24(0.3175-24)
0.26700.27700.28540.29026.78187.03587.24927.3711
0.31257.9375
6.85
7.20
3/8-24(0.375-24)
0.33000.34000.34790.35288.38208.63608.83678.9611
0.37509.5250
8.45
8.78
7/16-20(0.4375-20)
UNF
0.38300.39500.40500.41049.728210.033010.287010.4242
0.437511.1125
9.85
10.23
1/2-20(0.50-20)
0.44600.45700.46750.473111.328411.607811.874512.0167
0.500012.7000
11.40
11.82
9/16-18(0.5625-18)
0.50200.51500.52640.532312.750813.081013.370613.5204
0.562514.2875
12.85
13.31
5/8-18(0.625-18)
0.56500.57800.58890.594914.351014.681214.958115.1105
0.625015.8750
14.45
14.89
3/4-16(0.750-16)
0.68200.69600.70940.715917.322817.678418.018818.1839
0.750019.0500
17.40
17.95
7/8-14(0.875-14)
0.79800.81400.82860.835620.269220.675621.046421.2242
0.875022.2250
20.35
20.97
1"-12(1.000-12)
0.91000.92800.94590.953523.114023.571224.025924.2189
1.000025.4000
23.90
23.95
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或0.190-32UNF-2B)、3/8-24UNF-2B(或0.375-24UNF-2B)
美制螺纹计算公式:
一、示例:粗牙系列3/8—16UNC—2A细牙系列3/8—24UNF—2A特细牙系列3/8—32UNFF—2A定螺距系列3/8—20UN—2A
第一位数字3/8表示螺纹外径,单位为英寸,转换为米制单位mm要乘以25.4,即3/8×25.4=9.525mm;第二、三位数字16、24、32、20为每英寸牙数(在25.4mm长度上的牙数);第三位以后的文字代号UNC、UNF、UNFF、UN为系列代号,最后两位2A为精度等级。
二:10-32UNF以10为例:大径:(10*0.013+0.06)*25.4=4.826
篇八:美制螺栓标准对照表
美制螺纹标准对照表公称尺寸和每英寸牙数8#-32(0.164-32)#10-24(0.190-24)#12-24(0.216-24)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/8-11(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)美制外螺纹(2A)常用规格极限尺寸表(粗牙)大径极限中径极限螺纹系小径max列代号最小最大最小最大0.15710.16310.13990.14280.12483.99034.14273.55353.62713.16990.18180.18900.15860.16190.13794.61774.80064.02844.11233.50270.20780.21500.18450.18790.16395.27815.46104.68634.77274.16310.24080.24890.21270.21640.18766.11636.32215.40265.49664.76500.30260.31130.27120.27520.24317.68607.90706.88856.99016.17470.36430.37370.32870.33310.29709.25329.49208.34908.46077.54380.42580.43610.38500.38970.3485UNC10.815311.07699.77909.89848.85190.48760.49850.44350.44850.404112.385012.661911.264911.391910.26410.54950.56090.50160.50680.458713.957314.246912.740612.872711.65100.61130.62340.55890.56440.511915.527015.834414.196114.335813.00230.73530.74820.67730.68320.625518.676619.004317.203417.353315.88770.85920.87310.79460.80090.736821.823722.176720.182820.342918.71470.98300.99800.91000.91680.844624.968225.349223.114023.286721.4528螺胚直径最小最大3.584.074.725.456.948.409.8311.3412.8014.2717.2820.2723.223.614.104.755.486.988.449.8711.3812.8414.3217.3320.3223.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)大径极限中径极限公称尺寸和螺纹系小径max每英寸牙数列代号最小最大最小最大8-360.15770.16320.14240.14520.1291(0.164-36)4.00564.14533.61703.68813.279110-320.18310.18910.16580.16880.1508(0.190-32)4.65074.80314.21134.28753.830312-280.20850.21500.18860.19180.1712(0.216-28)5.29595.46104.79044.87174.34851/4-280.24250.24900.22250.22580.2052(0.250-28)6.15956.32465.65155.73535.21215/16-240.30420.31140.28060.28430.2603(0.3175-24)7.72677.90967.12727.22126.61163/8-240.36670.37390.34300.34680.3228(0.375-24)9.31429.49718.71228.80878.19917/16-200.42810.43620.39950.40370.3749UNF(0.4375-20)10.873711.079510.147310.25409.52251/2-200.49060.49870.46190.46620.4374(0.50-20)12.461212.667011.732311.841511.11009/16-180.55240.56110.52050.52500.4929(0.5625-18)14.031014.251913.220713.335012.51975/8-180.61490.62360.58280.58750.5554(0.625-18)15.618515.839414.803114.922514.10723/4-160.73910.74850.70290.70790.6718(0.750-16)18.773119.011917.853717.980717.06377/8-140.86310.87340.82160.82700.7858(0.875-14)21.922722.184420.868621.005819.95931"-120.98680.99820.93820.94410.8960(1.000-12)25.064725.354323.830323.980122.7584
螺胚直径最小最大3.654.244.825.697.178.7510.1911.7813.2714.8517.9120.9323.903.674.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
公称尺寸和每英寸牙数8-32(0.164-32)10-24(0.190-24)12-24(0.216-24)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/8-11(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)螺纹小径极限中径极限系列大径min最小最大最小最大代号0.13000.13900.14370.14750.16403.30203.53063.65003.74654.16560.14500.15600.16290.16720.19003.68303.96244.13774.24694.82600.17100.18100.18890.19330.21604.34344.59744.79814.90985.48640.19600.20700.21750.22240.25004.97845.25785.52455.64906.35000.25200.26500.27640.28170.31256.40086.73107.02067.15527.93750.30700.32100.33440.34010.37507.79788.15348.49388.63859.52500.36000.37600.39110.39720.4375UNC9.14409.55049.933910.088911.11250.41700.43400.45000.45650.500010.591811.023611.430011.595112.70000.47200.49000.50840.51520.562511.988812.446012.913413.086114.28750.52700.54600.56600.57320.625013.385813.868414.376414.559315.87500.64200.66300.68500.69270.750016.306816.840217.399017.594619.05000.75500.77800.80280.81100.875019.177019.761220.391120.599422.22500.86500.89000.91880.92761.000021.971022.606023.337523.561025.4000
底孔直径最小3.403.754.405.056.457.859.2010.6512.0513.4516.4019.3022.10最大3.503.904.555.206.608.009.4010.9012.3013.7016.7019.6022.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)小径极限中径极限公称尺寸和螺纹系大径min每英寸牙数列代号最小最大最小最大8-360.13400.14200.14600.14960.1640(0.164-36)3.40363.60683.70843.79984.165610-320.15600.16400.16970.17360.1900(0.190-32)3.96244.16564.31044.40944.826012-280.17700.18600.19280.19700.2160(0.216-28)4.49584.72444.89715.00385.48641/4-280.21100.22000.22680.23110.2500(0.250-28)5.35945.58805.76075.86996.35005/16-240.26700.27700.28540.29020.3125(0.3175-24)6.78187.03587.24927.37117.93753/8-240.33000.34000.34790.35280.3750(0.375-24)8.38208.63608.83678.96119.52507/16-200.38300.39500.40500.41040.4375UNF(0.4375-20)9.728210.033010.287010.424211.11251/2-200.44600.45700.46750.47310.5000(0.50-20)11.328411.607811.874512.016712.70009/16-180.50200.51500.52640.53230.5625(0.5625-18)12.750813.081013.370613.520414.28755/8-180.56500.57800.58890.59490.6250(0.625-18)14.351014.681214.958115.110515.87503/4-160.68200.69600.70940.71590.7500(0.750-16)17.322817.678418.018818.183919.05007/8-140.79800.81400.82860.83560.8750(0.875-14)20.269220.675621.046421.224222.22501"-120.91000.92800.94590.95351.0000(1.000-12)23.114023.571224.025924.218925.4000
底孔直径最小最大3.454.004.555.406.858.459.8511.4012.8514.4517.4020.3523.903.674.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
篇九:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和螺纹系列
大径极限
每英寸牙数代号最小最大
中径极限
最小
最大
小径max
8-32
0.15710.16310.13990.14280.1248
(0.164-32)
3.99034.14273.55353.62713.1699
10-24
0.18180.18900.15860.16190.1379
(0.190-24)
4.61774.80064.02844.11233.5027
12-24
0.20780.21500.18450.18790.1639
(0.216-24)
5.27815.46104.68634.77274.1631
1/4-20
0.24080.24890.21270.21640.1876
(0.250-20)
6.11636.32215.40265.49664.7650
5/16-18
0.30260.31130.27120.27520.2431
(0.3175-18)
7.68607.90706.88856.99016.1747
3/8-16
0.36430.37370.32870.33310.2970
(0.375-16)
9.25329.49208.34908.46077.5438
7/16-14(0.4375-14)
UNC
0.42580.436110.815311.0769
0.38509.7790
0.38979.8984
0.34858.8519
1/2-13
0.48760.49850.44350.44850.4041
(0.50-13)
12.385012.661911.264911.391910.2641
9/16-12
0.54950.56090.50160.50680.4587
(0.5625-12)
13.957314.246912.740612.872711.6510
5/8-11
0.61130.62340.55890.56440.5119
(0.625-11)
15.527015.834414.196114.335813.0023
3/4-10
0.73530.74820.67730.68320.6255
(0.750-10)
18.676619.004317.203417.353315.8877
7/8-9
0.85920.87310.79460.80090.7368
(0.875-9)
21.823722.176720.182820.342918.7147
1"-8
0.98300.99800.91000.91680.8446
(1.000-8)
24.968225.349223.114023.286721.4528
螺胚直径
最小
最大
3.58
3.61
4.07
4.10
4.72
4.75
5.45
5.48
6.94
6.98
8.40
8.44
9.83
9.87
11.3411.38
12.8012.84
14.2714.32
17.2817.33
20.2720.32
23.2223.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系列代
大径极限
每英寸牙数
号
最小最大
8-36
0.15770.1632
(0.164-36)
4.00564.1453
10-32
0.18310.1891
(0.190-32)
4.65074.8031
12-28
0.20850.2150
(0.216-28)
5.29595.4610
1/4-28
0.24250.2490
(0.250-28)
6.15956.3246
5/16-24
0.30420.3114
(0.3175-24)
7.72677.9096
3/8-24
0.36670.3739
(0.375-24)
9.31429.4971
7/16-20(0.4375-20)
UNF
0.42810.436210.873711.0795
1/2-20
0.49060.4987
(0.50-20)
12.461212.6670
9/16-18
0.55240.5611
(0.5625-18)
14.031014.2519
5/8-18
0.61490.6236
(0.625-18)
15.618515.8394
3/4-16
0.73910.7485
(0.750-16)
18.773119.0119
7/8-14
0.86310.8734
(0.875-14)
21.922722.1844
1"-12
0.98680.9982
(1.000-12)
25.064725.3543
中径极限
最小
最大
小径max
0.14240.14520.1291
3.61703.68813.2791
0.16580.16880.1508
4.21134.28753.8303
0.18860.19180.1712
4.79044.87174.3485
0.22250.22580.2052
5.65155.73535.2121
0.28060.28430.2603
7.12727.22126.6116
0.34300.34680.3228
8.71228.80878.1991
0.39950.40370.3749
10.147310.25409.5225
0.46190.46620.4374
11.732311.841511.1100
0.52050.52500.4929
13.220713.335012.5197
0.58280.58750.5554
14.803114.922514.1072
0.70290.70790.6718
17.853717.980717.0637
0.82160.82700.7858
20.868621.005819.9593
0.93820.94410.8960
23.830323.980122.7584
螺胚直径
最小
最大
3.65
3.67
4.24
4.27
4.82
4.85
5.69
5.71
7.17
7.20
8.75
8.78
10.1910.23
11.7811.82
13.2713.31
14.8514.89
17.9117.95
20.9320.97
23.9023.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每英螺纹系列
小径极限
中径极限
寸牙数
代号
最小
最大
最小
最大
大径min
底孔直径最小最大
8-32(0.164-32)
0.13000.13903.30203.5306
0.14373.6500
0.14753.7465
0.16404.1656
3.40
3.50
10-24(0.190-24)
0.14500.15603.68303.9624
0.16294.1377
0.16724.2469
0.19004.8260
3.75
3.90
12-24(0.216-24)
0.17100.18104.34344.5974
0.18894.7981
0.19334.9098
0.21605.4864
4.40
4.55
1/4-20(0.250-20)
0.19600.20704.97845.2578
0.21755.5245
0.22245.6490
0.25006.3500
5.05
5.20
5/16-18(0.3175-18)
0.25200.26506.40086.7310
0.27647.0206
0.28177.1552
0.31257.9375
6.45
6.60
3/8-16(0.375-16)
0.30700.32107.79788.1534
0.33448.4938
0.34018.6385
0.37509.5250
7.85
8.00
7/16-14(0.4375-14)
UNC
0.36000.37609.14409.5504
0.39110.39729.933910.0889
0.437511.1125
9.20
9.40
1/2-13(0.50-13)
0.41700.43400.45000.456510.591811.023611.430011.5951
0.500012.7000
10.65
10.90
9/16-12(0.5625-12)
0.47200.49000.50840.515211.988812.446012.913413.0861
0.562514.2875
12.05
12.30
5/8-11(0.625-11)
0.52700.54600.56600.573213.385813.868414.376414.5593
0.625015.8750
13.45
13.70
3/4-10(0.750-10)
0.64200.66300.68500.692716.306816.840217.399017.5946
0.750019.0500
16.40
16.70
7/8-9(0.875-9)
0.75500.77800.80280.811019.177019.761220.391120.5994
0.875022.2250
19.30
19.60
1"-8(1.000-8)
0.86500.89000.91880.927621.971022.606023.337523.5610
1.000025.4000
22.10
22.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和每螺纹系列
小径极限
中径极限
英寸牙数
代号最小最大
最小
最大
8-36(0.164-36)
UNF
0.13403.4036
0.14203.6068
0.14603.7084
0.14963.7998
大径min
0.16404.1656
底孔直径最小最大
3.453.67
10-32(0.190-32)
12-28(0.216-28)
1/4-28(0.250-28)
5/16-24(0.3175-24)
3/8-24(0.375-24)
7/16-20(0.4375-20)
1/2-20(0.50-20)9/16-18(0.5625-18)
5/8-18(0.625-18)
3/4-16(0.750-16)
7/8-14(0.875-14)
1"-12(1.000-12)
0.15603.96240.17704.49580.21105.35940.26706.78180.33008.38200.38309.72820.446011.32840.502012.75080.565014.35100.682017.32280.798020.26920.910023.1140
0.16404.16560.18604.72440.22005.58800.27707.03580.34008.63600.395010.03300.457011.60780.515013.08100.578014.68120.696017.67840.814020.67560.928023.5712
0.16974.31040.19284.89710.22685.76070.28547.24920.34798.83670.405010.28700.467511.87450.526413.37060.588914.95810.709418.01880.828621.04640.945924.0259
0.17364.40940.19705.00380.23115.86990.29027.37110.35288.96110.410410.42420.473112.01670.532313.52040.594915.11050.715918.18390.835621.22420.953524.2189
0.19004.8260
4.00
0.21605.4864
4.55
0.25006.3500
5.40
0.31257.9375
6.85
0.37509.5250
8.45
0.437511.1125
9.85
0.500012.7000
11.40
0.562514.2875
12.85
0.625015.8750
14.45
0.750019.0500
17.40
0.875022.2250
20.35
1.000025.4000
23.90
4.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
篇十:美制螺栓标准对照表
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙数螺纹系
列代号
大径极限中径极限
小
径max
螺胚直径最小最大最小最大最小最大
8-32
UNC0.15710.16310.13990.14280.1248
3.583.61
(0.164-32)3.99034.14273.55353.62713.1699
10-240.18180.18900.15860.16190.1379
4.074.10
(0.190-24)4.61774.80064.02844.11233.5027
12-240.20780.21500.18450.18790.1639
4.724.75
(0.216-24)5.27815.46104.68634.77274.1631
1/4-200.24080.24890.21270.21640.1876
5.455.48
(0.250-20)6.11636.32215.40265.49664.7650
5/16-180.30260.31130.27120.27520.2431
6.946.98
(0.3175-18)7.68607.90706.88856.99016.1747
3/8-160.36430.37370.32870.33310.2970
8.408.44
(0.375-16)9.25329.49208.34908.46077.5438
7/16-140.42580.43610.38500.38970.3485
9.839.87
(0.4375-14)10.815311.07699.77909.89848.8519
1/2-130.48760.49850.44350.44850.4041
11.3411.38
(0.50-13)12.385012.661911.264911.391910.2641
9/16-120.54950.56090.50160.50680.4587
12.8012.84
(0.5625-12)13.957314.246912.740612.872711.6510
5/8-110.61130.62340.55890.56440.5119
14.2714.32
(0.625-11)15.527015.834414.196114.335813.0023
3/4-100.73530.74820.67730.68320.6255
17.2817.33
(0.750-10)18.676619.004317.203417.353315.8877
7/8-90.85920.87310.79460.80090.7368
20.2720.32
(0.875-9)21.823722.176720.182820.342918.7147
1"-80.98300.99800.91000.91680.8446
23.2223.27
(1.000-8)24.968225.349223.114023.286721.4528
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。
2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)
(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和每英寸牙数螺纹系
列代号
大径极限中径极限
小径max
螺胚直径最小最大最小最大最小最大
8-36
UNF0.15770.16320.14240.14520.1291
3.653.67
(0.164-36)4.00564.14533.61703.68813.2791
10-320.18310.18910.16580.16880.1508
4.244.27(0.190-32)4.65074.80314.21134.28753.8303
12-280.20850.21500.18860.19180.17124.824.85
(0.216-28)5.29595.46104.79044.87174.3485
1/4-280.24250.24900.22250.22580.2052
5.695.71(0.250-28)
6.15956.32465.65155.73535.2121
5/16-240.30420.31140.28060.28430.2603
7.177.20(0.3175-24)7.72677.90967.12727.22126.6116
3/8-240.36670.37390.34300.34680.3228
8.758.78(0.375-24)9.31429.49718.71228.80878.1991
7/16-200.42810.43620.39950.40370.3749
10.1910.23(0.4375-20)10.873711.079510.147310.25409.5225
1/2-200.49060.49870.46190.46620.4374
11.7811.82(0.50-20)12.461212.667011.732311.841511.1100
9/16-180.55240.56110.52050.52500.4929
篇十一:美制螺栓标准对照表
P> 如果对你有帮助,请下载使用!美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙螺纹系
大径极限
数
列代号最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-32(0.164-32)
0.15710.16310.13990.14283.99034.14273.55353.6271
0.12483.1699
3.58
3.61
10-24(0.190-24)
0.18180.18900.15860.16194.61774.80064.02844.1123
0.13793.5027
4.07
4.10
12-24(0.216-24)
0.20780.21500.18450.18795.27815.46104.68634.7727
0.16394.1631
4.72
4.75
1/4-20(0.250-20)
0.24080.24890.21270.21646.11636.32215.40265.4966
0.18764.7650
5.45
5.48
5/16-18(0.3175-18)
0.30260.31130.27120.27527.68607.90706.88856.9901
0.24316.1747
6.94
6.98
3/8-16(0.375-16)
0.36430.37370.32870.33319.25329.49208.34908.4607
0.29707.5438
8.40
8.44
7/16-14(0.4375-14)
UNC
0.425810.8153
0.436111.0769
0.38509.7790
0.38979.8984
0.34858.8519
9.83
9.87
1/2-13(0.50-13)
0.48760.49850.44350.448512.385012.661911.264911.3919
0.404110.2641
11.34
11.38
9/16-12(0.5625-12)
0.54950.56090.50160.506813.957314.246912.740612.8727
0.458711.6510
12.80
12.84
5/8-11(0.625-11)
0.61130.62340.55890.564415.527015.834414.196114.3358
0.511913.0023
14.27
14.32
3/4-10(0.750-10)
0.73530.74820.67730.683218.676619.004317.203417.3533
0.625515.8877
17.28
17.33
7/8-9(0.875-9)
0.85920.87310.79460.800921.823722.176720.182820.3429
0.736818.7147
20.27
20.32
1"-8(1.000-8)
0.98300.99800.91000.916824.968225.349223.114023.2867
0.844621.4528
23.22
23.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。
2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)
(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系大径极限每英寸牙数列代号最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-36(0.164-36)
0.15770.16320.14240.14524.00564.14533.61703.6881
0.12913.2791
3.65
3.67
10-32(0.190-32)
UNF
0.18314.6507
0.18914.8031
0.16584.2113
0.16884.2875
0.15083.8303
4.24
4.27
12-28(0.216-28)
0.20850.21500.18860.19185.29595.46104.79044.8717
0.17124.3485
4.82
4.85
1
如果对你有帮助,请下载使用!
1/4-28(0.250-28)
0.24250.24900.22250.22586.15956.32465.65155.7353
0.20525.2121
5.69
5.71
5/16-24(0.3175-24)
0.30420.31140.28060.28437.72677.90967.12727.2212
0.26036.6116
7.17
7.20
3/8-24(0.375-24)
0.36670.37390.34300.34689.31429.49718.71228.8087
0.32288.1991
8.75
8.78
7/16-20(0.4375-20)
0.42810.43620.39950.403710.873711.079510.147310.2540
0.37499.5225
10.19
10.23
1/2-20(0.50-20)
0.49060.49870.46190.466212.461212.667011.732311.8415
0.437411.1100
11.78
11.82
9/16-18(0.5625-18)
0.55240.56110.52050.525014.031014.251913.220713.3350
0.492912.5197
13.27
13.31
5/8-18(0.625-18)
0.61490.62360.58280.587515.618515.839414.803114.9225
0.555414.1072
篇十二:美制螺栓标准对照表
P> 美制螺纹标准对照表(总6页)本页仅作为文档封面,使用时可以删除Thisdocumentisforreferenceonly-rar21year.March
美制螺纹标准对照表
美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙
数
螺纹系列代号
大径极限
最小
最大
中径极限
最小
最大
8-32
小径max
螺胚直径最小最大
10-24
12-24
1/4-20
5/16-18
3/8-16
7/16-141/2-13
UNC
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或、3/8-16UNC-2A(或(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
大径极限
中径极限
每英寸牙数列代号最小
最大
最小
最大
8-36
UNF
小径max
螺胚直径最小最大
10-32
12-281/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-167/8-141"-12
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或、3/8-24UNF-2A(或
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每螺纹系列
小径极限
中径极限
英寸牙数
代号
最小
最大
最小
最大
8-32
10-2412-24
UNC
1/4-20
大径min
底孔直径
最小
最大
5/16-183/8-16
7/16-141/2-139/16-125/8-113/4-107/8-91"-8
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或、3/8-16UNC-2B(或
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
小径极限
中径极限
每英寸牙数列代号最小
最大
最小
最大
8-36
大径min
底孔直径最小最大
10-32
12-28
1/4-28UNF
5/16-24
3/8-24
7/16-20
1/2-209/16-18
5/8-183/4-167/8-141"-12
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或、3/8-24UNF-2B(或
篇十三:美制螺栓标准对照表
P> 美制螺纹标准对照表美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸
螺纹系
和每英寸牙
数
列代号
大径极限最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-32(0.164-32)
0.15713.9903
0.16314.1427
0.13993.5535
0.14283.6271
0.12483.583.61
3.1699
10-24(0.190-24)
0.18184.6177
0.18904.8006
0.15864.0284
0.16194.1123
0.13794.074.10
3.5027
12-24(0.216-24)
0.20785.2781
0.21505.4610
0.18454.6863
0.18794.7727
0.16394.724.75
4.1631
1/4-20(0.250-20)
0.24086.1163
0.24896.3221
0.21275.4026
0.21645.4966
0.18765.455.48
4.7650
5/16-18
0.30260.31130.27120.27520.2431
(0.3175-18)
7.68607.90706.88856.9901
6.946.986.1747
3/8-16(0.375-16)
0.36439.2532
0.37379.4920
0.32878.3490
0.33318.4607
0.29708.408.44
7.5438
7/16-14
0.42580.43610.38500.38970.3485
(0.4375-14UNC10.815311.0769
)
9.7790
9.8984
9.839.878.8519
1/2-13(0.50-13)
0.48760.49850.44350.44850.404111.3411.38
12.385012.661911.264911.391910.2641
9/16-12
0.54950.56090.50160.50680.4587
(0.5625-12)
12.8012.8413.957314.246912.740612.872711.6510
5/8-11(0.625-11)
0.61130.62340.55890.56440.511914.2714.32
15.527015.834414.196114.335813.0023
3/4-10(0.750-10)
0.73530.74820.67730.68320.625517.2817.33
18.676619.004317.203417.353315.8877
7/8-9(0.875-9)
0.85920.87310.79460.80090.736820.2720.32
21.823722.176720.182820.342918.7147
1"-8(1.000-8)
0.98300.99800.91000.91680.844623.2223.27
24.968225.349223.114023.286721.4528
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
大径极限
每英寸牙数列代号最小
最大
8-36
0.15770.1632
(0.164-36)
4.00564.1453
10-32
0.18310.1891
(0.190-32)
4.65074.8031
12-28
0.20850.2150
(0.216-28)
5.29595.4610
1/4-28
0.24250.2490
(0.250-28)
6.15956.3246
5/16-24
0.30420.3114
(0.3175-24)
7.72677.9096
3/8-24
0.36670.3739
(0.375-24)
9.31429.4971
7/16-20
0.42810.4362
(0.4375-20UNF
)
10.873711.0795
1/2-20
0.49060.4987
(0.50-20)
12.461212.6670
9/16-18
0.55240.5611
(0.5625-18)
14.031014.2519
5/8-18
0.61490.6236
(0.625-18)
15.618515.8394
3/4-16
0.73910.7485
(0.750-16)
18.773119.0119
7/8-14
0.86310.8734
(0.875-14)
21.922722.1844
1"-12
0.98680.9982
(1.000-12)
25.064725.3543
中径极限
最小
最大
螺胚直径小径max
最小最大
0.14243.6170
0.14523.6881
0.12913.65
3.2791
3.67
0.16584.2113
0.16884.2875
0.15084.24
3.8303
4.27
0.18864.7904
0.19184.8717
0.17124.82
4.3485
4.85
0.22255.6515
0.22585.7353
0.20525.69
5.2121
5.71
0.28060.28430.2603
7.12727.2212
7.177.206.6116
0.34308.71220.3995
0.34688.80870.4037
10.147310.2540
0.32288.75
8.19910.3749
10.199.5225
8.7810.23
0.461911.7323
0.5205
0.466211.8415
0.5250
13.220713.3350
0.437411.78
11.11000.492913.27
12.5197
11.8213.31
0.582814.8031
0.702917.8537
0.821620.8686
0.938223.8303
0.587514.9225
0.707917.9807
0.827021.0058
0.944123.9801
0.555414.85
14.10720.671817.91
17.06370.785820.93
19.95930.896023.90
22.7584
14.8917.9520.9723.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每螺纹系英寸牙数列代号8-32
(0.164-32)10-24
(0.190-24)12-24
(0.216-24)1/4-20
(0.250-20)5/16-18
(0.3175-18)3/8-16
(0.375-16)7/16-14UNC
(0.4375-14)1/2-13
(0.50-13)9/16-12
(0.5625-12)5/8-11
(0.625-11)3/4-10
(0.750-10)7/8-9
(0.875-9)1"-8
(1.000-8)
小径极限
最小
最大
0.1300
0.1390
3.3020
3.5306
0.1450
0.1560
3.6830
3.9624
0.1710
0.1810
4.3434
4.5974
0.1960
0.2070
4.9784
5.2578
0.2520
0.2650
6.4008
6.7310
0.3070
0.3210
7.7978
8.1534
0.3600
0.3760
9.1440
9.5504
0.4170
0.4340
10.591811.0236
0.4720
0.4900
11.988812.4460
0.5270
0.5460
13.385813.8684
0.6420
0.6630
16.306816.8402
0.7550
0.7780
19.177019.7612
0.8650
0.8900
21.971022.6060
中径极限
最小
最大
0.1437
0.1475
3.6500
3.7465
0.1629
0.1672
4.1377
4.2469
0.1889
0.1933
4.7981
4.9098
0.2175
0.2224
5.5245
5.6490
0.2764
0.2817
7.0206
7.1552
0.3344
0.3401
8.4938
8.6385
0.3911
0.3972
9.933910.0889
0.4500
0.4565
11.430011.5951
0.5084
0.5152
12.913413.0861
0.5660
0.5732
14.376414.5593
0.6850
0.6927
17.399017.5946
0.8028
0.8110
20.391120.5994
0.9188
0.9276
23.337523.5610
大径min
底孔直径
最小
最大
0.16403.40
4.1656
3.50
0.19003.75
4.8260
3.90
0.21604.40
5.4864
4.55
0.25005.05
6.3500
5.20
0.31256.45
7.9375
6.60
0.37507.85
9.5250
8.00
0.43759.20
11.1125
9.40
0.500010.65
12.7000
10.90
0.562512.05
14.2875
12.30
0.625013.45
15.8750
13.70
0.750016.40
19.0500
16.70
0.875019.30
22.2250
19.60
1.000022.10
25.4000
22.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
小径极限
每英寸牙数列代号最小
最大
8-36
0.13400.1420
(0.164-36)
3.40363.6068
10-32
0.15600.1640
(0.190-32)
3.96244.1656
12-28
0.17700.1860
(0.216-28)
4.49584.7244
1/4-28
0.21100.2200
(0.250-28)
5.35945.5880
5/16-24
0.26700.2770
(0.3175-24)
6.78187.0358
3/8-24
0.33000.3400
(0.375-24)
8.38208.6360
7/16-20
0.38300.3950
(0.4375-20UNF)
9.728210.0330
1/2-20
0.44600.4570
(0.50-20)
11.328411.6078
9/16-18
0.50200.5150
(0.5625-18)
12.750813.0810
5/8-18
0.56500.5780
(0.625-18)
14.351014.6812
3/4-16
0.68200.6960
(0.750-16)
17.322817.6784
7/8-14
0.79800.8140
(0.875-14)
20.269220.6756
1"-12
0.91000.9280
(1.000-12)
23.114023.5712
中径极限
最小
最大
底孔直径大径min
最小最大
0.14603.7084
0.14963.7998
0.16403.45
4.1656
3.67
0.16974.3104
0.17364.4094
0.19004.00
4.8260
4.27
0.19284.8971
0.19705.0038
0.21604.55
5.4864
4.85
0.22685.7607
0.23115.8699
0.25005.40
6.3500
5.71
0.28540.29020.3125
7.24927.3711
6.857.207.9375
0.34798.83670.4050
0.35288.96110.4104
10.287010.4242
0.37509.52500.4375
11.1125
8.459.85
8.7810.23
0.467511.8745
0.5264
0.473112.0167
0.5323
13.370613.5204
0.500011.40
12.70000.562512.85
14.2875
11.8213.31
0.588914.9581
0.709418.0188
0.828621.0464
0.945924.0259
0.594915.1105
0.715918.1839
0.835621.2242
0.953524.2189
0.625014.45
15.87500.750017.40
19.05000.875020.35
22.22501.000023.90
25.4000
14.8917.9520.9723.95
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或0.190-32UNF-2B)、3/8-24UNF-2B(或0.375-24UNF-2B)
篇十四:美制螺栓标准对照表
P> 9168公称尺寸和每英寸牙数美制外螺纹2a常用规格极限尺寸表细牙螺纹系列代号最小最大大径极限中径极限最小小径max螺胚直径最小最大最大8360美制螺纹标准对照表美制外螺纹(2A)常用规格极限尺寸表(粗牙)大径极限中径极限公称尺寸和螺纹系列小径max每英寸牙数代号最小最大最小最大8-320.15710.16310.13990.14280.1248(0.164-32)3.99034.14273.55353.62713.169910-240.18180.18900.15860.16190.1379(0.190-24)4.61774.80064.02844.11233.502712-240.20780.21500.18450.18790.1639(0.216-24)5.27815.46104.68634.77274.16311/4-200.24080.24890.21270.21640.1876(0.250-20)6.11636.32215.40265.49664.76505/16-180.30260.31130.27120.27520.2431(0.3175-18)7.68607.90706.88856.99016.17473/8-160.36430.37370.32870.33310.2970(0.375-16)9.25329.49208.34908.46077.54387/16-140.42580.43610.38500.38970.3485UNC(0.4375-14)10.815311.07699.77909.89848.85191/2-130.48760.49850.44350.44850.4041(0.50-13)12.385012.661911.264911.391910.26419/16-120.54950.56090.50160.50680.4587(0.5625-12)13.957314.246912.740612.872711.65105/8-110.61130.62340.55890.56440.5119(0.625-11)15.527015.834414.196114.335813.00233/4-100.73530.74820.67730.68320.6255(0.750-10)18.676619.004317.203417.353315.88777/8-90.85920.87310.79460.80090.7368(0.875-9)21.823722.176720.182820.342918.71471"-80.98300.99800.91000.91680.8446(1.000-8)24.968225.349223.114023.286721.4528螺胚直径最小最大3.584.074.725.456.948.409.8311.3412.8014.2717.2820.2723.223.614.104.755.486.988.449.8711.3812.8414.3217.3320.3223.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)大径极限中径极限公称尺寸和螺纹系列代小径max每英寸牙数号最小最大最小最大8-360.15770.16320.14240.14520.1291(0.164-36)4.00564.14533.61703.68813.279110-320.18310.18910.16580.16880.1508(0.190-32)4.65074.80314.21134.28753.830312-280.20850.21500.18860.19180.1712(0.216-28)5.29595.46104.79044.87174.34851/4-280.24250.24900.22250.22580.2052(0.250-28)6.15956.32465.65155.73535.21215/16-240.30420.31140.28060.28430.2603(0.3175-24)7.72677.90967.12727.22126.61163/8-240.36670.37390.34300.34680.3228(0.375-24)9.31429.49718.71228.80878.19917/16-200.42810.43620.39950.40370.3749UNF(0.4375-20)10.873711.079510.147310.25409.52251/2-200.49060.49870.46190.46620.4374(0.50-20)12.461212.667011.732311.841511.11009/16-180.55240.56110.52050.52500.4929(0.5625-18)14.031014.251913.220713.335012.51975/8-180.61490.62360.58280.58750.5554(0.625-18)15.618515.839414.803114.922514.10723/4-160.73910.74850.70290.70790.6718(0.750-16)18.773119.011917.853717.980717.06377/8-140.86310.87340.82160.82700.7858(0.875-14)21.922722.184420.868621.005819.95931"-120.98680.99820.93820.94410.8960(1.000-12)25.064725.354323.830323.980122.7584
螺胚直径最小最大3.654.244.825.697.178.7510.1911.7813.2714.8517.9120.9323.903.674.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)小径极限中径极限公称尺寸和每英螺纹系列大径min寸牙数代号最小最大最小最大8-320.13000.13900.14370.14750.1640(0.164-32)3.30203.53063.65003.74654.165610-240.14500.15600.16290.16720.1900(0.190-24)3.68303.96244.13774.24694.826012-240.17100.18100.18890.19330.2160(0.216-24)4.34344.59744.79814.90985.48641/4-200.19600.20700.21750.22240.2500(0.250-20)4.97845.25785.52455.64906.35005/16-180.25200.26500.27640.28170.3125(0.3175-18)6.40086.73107.02067.15527.93753/8-160.30700.32100.33440.34010.3750(0.375-16)7.79788.15348.49388.63859.52507/16-140.36000.37600.39110.39720.4375UNC(0.4375-14)9.14409.55049.933910.088911.11251/2-130.41700.43400.45000.45650.5000(0.50-13)10.591811.023611.430011.595112.70009/16-120.47200.49000.50840.51520.5625(0.5625-12)11.988812.446012.913413.086114.28755/8-110.52700.54600.56600.57320.6250(0.625-11)13.385813.868414.376414.559315.87503/4-100.64200.66300.68500.69270.7500(0.750-10)16.306816.840217.399017.594619.05007/8-90.75500.77800.80280.81100.8750(0.875-9)19.177019.761220.391120.599422.22501"-80.86500.89000.91880.92761.0000(1.000-8)21.971022.606023.337523.561025.4000
底孔直径最小最大3.403.754.405.056.457.859.2010.6512.0513.4516.4019.3022.103.503.904.555.206.608.009.4010.9012.3013.7016.7019.6022.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
公称尺寸和每英寸牙数8-36(0.164-36)10-32(0.190-32)12-28(0.216-28)1/4-28(0.250-28)5/16-24(0.3175-24)3/8-24(0.375-24)7/16-20(0.4375-20)1/2-20(0.50-20)9/16-18(0.5625-18)5/8-18(0.625-18)3/4-16(0.750-16)7/8-14(0.875-14)1"-12(1.000-12)
美制内螺纹(2B)常用规格极限尺寸表(细牙)小径极限中径极限螺纹系列大径min代号最小最大最小最大0.13400.14200.14600.14960.16403.40363.60683.70843.79984.16560.15600.16400.16970.17360.19003.96244.16564.31044.40944.82600.17700.18600.19280.19700.21604.49584.72444.89715.00385.48640.21100.22000.22680.23110.25005.35945.58805.76075.86996.35000.26700.27700.28540.29020.31256.78187.03587.24927.37117.93750.33000.34000.34790.35280.37508.38208.63608.83678.96119.52500.38300.39500.40500.41040.4375UNF9.728210.033010.287010.424211.11250.44600.45700.46750.47310.500011.328411.607811.874512.016712.70000.50200.51500.52640.53230.562512.750813.081013.370613.520414.28750.56500.57800.58890.59490.625014.351014.681214.958115.110515.87500.68200.69600.70940.71590.750017.322817.678418.018818.183919.05000.79800.81400.82860.83560.875020.269220.675621.046421.224222.22500.91000.92800.94590.95351.000023.114023.571224.025924.218925.4000
底孔直径最小最大3.454.004.555.406.858.459.8511.4012.8514.4517.4020.3523.903.674.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
篇十五:美制螺栓标准对照表
P> 螺纹规格美制英制公制螺纹规格美制英制公制螺纹规格美制英制公制美制细牙unf2a外螺纹大径unfun2b内螺纹小径ununf序号规格型号最大最小公差最小最大公差17162011-
.
螺纹规格-美制、英制、公制
美制细牙UNF
序号
规格型号
1
7/16"-20
2A外螺纹大径UNFUN
最大
最小
公差
11.07910.8740.206
2B内螺纹小径(UN、UNF)
最小
最大
公差
9.72810.0330.305
2
1/2"-20
12.66712.4610.20611.32811.6080.279
3
9/16"-18
14.25214.0310.22112.75113.0810.330
4
3/4"-16
19.01218.7730.23917.32317.6780.356
5
7/8"-14
22.18421.9230.26220.26920.6760.406
6
11/16-12
26.94426.6550.29024.68925.1460.457
7
15/16-12
33.29433.0050.29031.03931.4960.457
8
15/8-12
41.22940.9400.29038.98939.4460.457
9
17/8-12
47.57947.2900.29045.33945.7960.457
10
21/2-12
63.45263.1620.29061.21461.6710.457
公制细牙
6g外螺纹大径
6H内螺纹小径
1
M10*1
9.9749.7940.1808.917
9.157
0.240
2
M12*1.5
11.96811.7320.23610.37610.6760.300
3
M14*1.5
13.96813.7320.23612.37612.6760.300
4
M16*1.5
15.96815.7320.23614.37614.6760.300
5
M18*1.5
17.96817.7320.23616.37616.6760.300
6
M20*1.5
19.96819.7320.23618.37618.6760.300
7
M22*1.5
21.96821.7320.23620.37620.6760.300
8
M24*1.5
23.96823.7320.23622.37622.6760.300
-
-.可修编-
-
.
9
M26*1.5
25.96825.7320.23624.37624.6760.300
10
M27*1.5
26.96826.7320.23625.37625.6760.300
11
M30*1.5
29.96829.7320.23628.37628.6760.300
12
M27*2
26.96226.6820.28024.83525.2100.375
13
M30*2
29.96229.6820.28027.83528.2100.375
14
M33*2
32.96232.6820.28030.83531.2100.375
15
M36*2
35.96235.6820.28033.83534.2100.375
16
M42*2
41.96241.6820.28039.83540.2100.375
英制管螺纹
1
G1/8-28
9.7289.5140.2148.566
8.848
0.282
2
G1/4-19
13.15712.9070.25011.44511.8900.445
3
G3/8-19
16.66216.4120.25014.95015.3950.445
4
G1/2-14
20.95520.6710.28418.63119.1720.541
5
G3/4-14
26.44126.1570.28424.11724.6580.541
6
G1-11
33.24932.8890.36030.29130.9310.640
7
G11/4-11
41.91041.5500.36038.95239.5920.640
8
G11/2-11
47.80347.4430.36044.84545.4850.640
公制/美制/英制螺纹对照表
给大家分享一下A
型美制螺纹(UNF)常用规格
外螺纹
内螺纹
-4
9/16"-19
牙14.2813.08-611/16''-1617.4616.1-813/16''-1620.6419.28-101''-142
5.4023.57-121(3/16)''-1230.0028.32-161(7/16)''-1236.5134.67-201(11/16)''-12
42.86
41.02C型JIC37度美制UNF螺纹常用规
格-47/16”-2011.1110.03-51/2”-2012.7011.32-69/16”-1814.2813.08-8
3/4”-1619.0017.68-107/8”-1422.2220.68-121(1/16)"-1226.9825.15-16
1(5/16)"-1233.3331.5-201(5/8)"-1241.2839.44
-241(7/8)"-1247.6245.8-322(1/2)"-1263.561.67英制圆柱管螺纹(BSPP)常用规
-
-.可修编-
-
.
格-41/4”-1913.15711.55-63/8”-1916.66214.95-81/2”-1420.95518.63-
123/4”-1426.44124.11-161”-1133.24930.29-201(1/4)''-1141.9138.95英
制圆锥管螺纹(BSPT)常用规格
基面大径
基准距
离1/4”-1913.15763/8”-1916.6626.41/2”-1420.9558.23/4”-1426.
441
9.5
1”-11
33.249
10.41(1/4)''-11
41.91
12.7
美制圆锥管螺纹
(NPT)1/8”-2710.2441/4”-1813.6043/8”-1817.044.32
-
-.可修编-
-
.
-
-.可修编-
-
.
-
-.可修编-
-
.
-
-.可修编-
-
.
-
-.可修编-
-
.
1/2”-1421.224.483/4”-1426.574.75
-
-.可修编-
-
.
1”-11(1/2)”33.224.61(1/4)”-11.541.964.83
-
-.可修编-
篇十六:美制螺栓标准对照表
P> 美制螺纹标准对照表美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸螺纹系
和每英寸牙
数
列代号
大径极限最小最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-32
10-24
12-24
1/4-20
5/16-18
3/8-16UNC
7/16-14
1/2-13
9/16-12
5/8-11
3/4-10
7/8-91"-8
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或、3/8-16UNC-2A(或(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
大径极限
每英寸牙数列代号最小
最大
中径极限
最小
最大
小径max
螺胚直径最小最大
8-36
10-32
12-28UNF
1/4-28
5/16-24
3/8-24
7/16-201/2-209/16-185/8-183/4-167/8-141"-12
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或、3/8-24UNF-2A(或
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每螺纹系
小径极限
中径极限
英寸牙数列代号最小
最大
最小
最大
大径min
底孔直径
最小
最大
8-32
10-24
12-24
1/4-20
5/16-18
3/8-16
7/16-14
UNC
1/2-13
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或、3/8-16UNC-2B(或
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和螺纹系
小径极限
每英寸牙数列代号最小
最大
中径极限
最小
最大
大径min
底孔直径最小最大
8-36
10-32
12-28
1/4-28UNF
5/16-24
3/8-24
7/16-20
1/2-209/16-18
5/8-183/4-167/8-141"-12
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或、3/8-24UNF-2B(或
篇十七:美制螺栓标准对照表
P> 美制管螺纹尺寸表[美制螺纹标准对照表]美制螺纹标准对照表
每英寸牙数8-32(0.164-32)10-24(0.190-24)12-24(0.21624)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/811(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)
UNC
美制外螺纹(2A)常用规格极限尺寸附注(粗牙)
大径极限最小0.15713.99030.18184.61770.20785.27810.24086.11630.30267.68600.36439.25320.425810.81530.487612.38500.549513.95730.611315.52700.735318.67660.859221.82370.983024.9682
最大0.16314.14270.18904.80060.21505.46100.24896.32210.31137.90700.37379.49200.436111.07690.498512.66190.560914.24690.623415.83440.748219.00430.873122.17670.998025.3492
中径极限最小0.13993.55350.15864.02840.18454.68630.21275.40260.27126.88850.32878.34900.38509.77900.443511.26490.501612.74060.558914.19610.677317.20340.794620.18280.910023.1140
最大0.14283.62710.16194.11230.18794.77270.21645.49660.27526.99010.33318.46070.38979.89840.448511.39190.506812.87270.564414.33580.683217.35330.800920.34290.916823.2867
代号
小径max
0.12483.16990.13793.50270.16394.16310.18764.76500.24316.17470.29707.54380.34858.85190.404110.26410.458711.65100.511913.00230.625515.88770.736818.71470.844621.4528
最小3.584.074.725.456.948.409.8311.3412.8014.2717.2820.2723.22
螺胚直径
最大3.614.104.755.486.988.449.8711.3812.8414.3217.3320.3223.27
公称尺寸和螺纹系列
1.螺胚直径指滚丝前的尺寸,数值为依历练公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/816UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)为人所知规格极限尺寸表(细牙)
大径极限
中径极限
小径max
螺胚直径
公称尺寸和每螺丝系列
8-36(0.164-36)10-32(0.190-32)12-28(0.216-28)1/4-28(0.250-28)5/16-24(0.3175-24)3/8-24(0.375-24)7/16-20(0.4375-20)1/2-20(0.50-20)9/16-18(0.5625-18)5/8-18
(0.625-18)3/4-16(0.750-16)7/8-14(0.875-14)1"-12(1.00012)
0.15774.00560.18314.65070.20855.29590.24256.15950.30427.72670.36679.31420.428110.87370.490612.46120.552414.03100.614915.61850.739118.77310.863121.92270.986825.0647
0.16324.14530.18914.80310.21505.46100.24906.32460.31147.90960.37399.49710.436211.07950.498712.66700.561114.25190.623615.83940.748519.01190.873422.18440.998225.3543
0.14243.61700.16584.21130.18864.79040.22255.65150.28067.12720.34308.71220.399510.14730.461911.73230.520513.22070.582814.80310.702917.85370.821620.86860.938223.8303
0.14523.68810.16884.28750.19184.87170.22585.73530.28437.22120.34688.80870.403710.25400.466211.84150.525013.33500.587514.92250.707917.98070.827021.00580.944123.9801
0.12913.27910.15083.83030.17124.34850.20525.21210.26036.61160.32288.19910.37499.52250.437411.11000.492912.51970.555414.10720.671817.06370.785819.95930.896022.7584
3.654.244.825.697.178.7510.1911.7813.2714.8517.9120.9323.90
3.674.274.855.717.208.7810.2311.8213.3114.8917.9520.9723.95
UNF
1.螺细胞器直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
英寸牙数8-32(0.164-32)美制内螺纹(2B)常用规格极限尺寸表(粗牙)小径极限最小0.13003.3020最大0.13903.5306中径极限最小0.14373.6500最大0.14753.7465代号UNC大径min0.16404.1656最小3.40底孔直径最大3.50公称尺寸和每螺纹系列(0.190-24)12-24(0.216-24)1/4-20(0.250-20)5/16-18(0.3175-18)3/8-16(0.375-16)7/16-14(0.4375-14)1/2-13(0.50-13)9/16-12(0.5625-12)5/8-11(0.625-11)3/4-10(0.750-10)7/8-9(0.875-9)1"-8(1.000-8)3.68300.17104.34340.19604.97840.25206.40080.30707.79780.36009.14400.417010.59180.472011.98880.527013.38580.642016.30680.755019.17700.865021.9710
3.96240.18104.59740.20705.25780.26506.73100.32108.15340.37609.55040.434011.02360.490012.44600.546013.86840.663016.84020.778019.76120.890022.6060
4.13770.18894.79810.21755.52450.27647.02060.33448.49380.39119.93390.450011.43000.508412.91340.566014.37640.685017.39900.802820.39110.918823.3375
4.24690.19334.90980.22245.64900.28177.15520.34018.63850.397210.08890.456511.59510.515213.08610.573214.55930.692717.59460.811020.59940.927623.5610
4.82600.21605.48640.25006.35000.31257.93750.37509.52500.437511.11250.500012.70000.562514.28750.625015.87500.750019.05000.875022.22501.000025.4000
3.754.405.056.457.859.2010.6512.0513.4516.4019.3022.10
3.904.555.206.608.009.4010.9012.3013.7016.7019.6022.40
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
英寸牙数8-36(0.164-36)10-32(0.190-32)12-28
UNF
美制内螺纹(2B)常用技术标准极限尺寸表(细牙)
小径极限最小0.13403.40360.15603.96240.1770
最大0.14203.60680.16404.16560.1860
中径极限最小0.14603.70840.16974.31040.1928
最大0.14963.79980.17364.40940.1970
代号
大径min
0.16404.16560.19004.8260
最小3.454.00
底孔直径
最大3.674.274.85
公称尺寸和每滚轮系列
0.21604.55
(0.216-28)4.49584.72444.89715.00385.48641/4-280.21100.22000.22680.23110.2500(0.250-28)5.35945.58805.76075.86996.35005.405/16-240.26700.27700.28540.29020.3125(0.3175-24)6.78187.03587.24927.37117.93756.853/8-240.33000.34000.34790.35280.3750(0.375-24)8.38208.63608.83678.96119.52508.457/16-200.38300.39500.40500.41040.4375(0.4375-20)9.728210.033010.287010.424211.11259.851/2-200.44600.45700.46750.47310.5000(0.5020)11.328411.607811.874512.016712.700011.409/16-180.50200.51500.52640.53230.5625(0.5625-18)12.750813.081013.370613.520414.287512.855/8-180.56500.57800.58890.59490.6250(0.625-18)14.351014.681214.958115.110515.875014.453/4-160.68200.69600.70940.71590.7500(0.750-16)17.322817.678418.018818.183919.050017.407/8-140.79800.81400.82860.83560.8750(0.875-14)20.269220.675621.046421.224222.225020.351"-120.91000.92800.94590.95351.0000(1.000-12)23.1140
23.571224.025924.218925.400023.901.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或0.190-32UNF2B)、3/8-24UNF-2B(或0.375-24UNF-2B)5.717.208.7810.2311.8213.3114.8917.9520.9723.95
篇十八:美制螺栓标准对照表
P> 如下是美制螺纹标准详细的对照表:美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙数
螺纹系列代号
大径极限
最小
最大
中径极限
螺胚直径
最小
最大
小径max最小
最大
8-32
0.15710.16310.13990.1428
(0.164-32)10-24
UNC
3.99030.1818
4.14270.189
3.55350.1586
3.62710.1619
(0.190-24)
4.61774.80064.02844.1123
0.12483.1699
3.58
0.13793.5027
4.07
3.614.1
12-24(0.216-24)
1/4-20(0.250-20)
5/16-18(0.3175-18)
3/8-16(0.375-16)
7/16-14(0.4375-14)
1/2-13
0.20785.2781
0.2150.18450.18795.4614.68634.7727
0.16394.1631
4.72
4.75
0.24080.24890.21270.21646.11636.32215.40265.4966
0.18764.765
5.45
5.48
0.30260.31130.27120.27527.6867.9076.88856.9901
0.24316.1747
6.94
6.98
0.36430.37370.32870.33319.25329.4928.3498.4607
0.2978.4
7.5438
8.44
0.42580.436110.815311.0769
0.3850.38979.7799.8984
0.34858.8519
9.83
9.87
0.48760.49850.44350.44850.404111.34
11.38
(0.50-13)9/16-12(0.5625-12)
5/8-11(0.625-11)
3/4-10(0.750-10)
7/8-9(0.875-9)
1"-8(1.000-8)
12.38512.661911.264911.391910.2641
0.54950.56090.50160.506813.957314.246912.740612.8727
0.458711.651
12.8
12.84
0.61130.62340.55890.564415.52715.834414.196114.3358
0.511914.27
13.0023
14.32
0.73530.74820.67730.683218.676619.004317.203417.3533
0.625517.28
15.8877
17.33
0.85920.87310.79460.800921.823722.176720.182820.3429
0.736820.27
18.7147
20.32
0.9830.99824.968225.3492
0.910.916823.11423.2867
0.844623.22
21.4528
23.27
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)
(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和每螺纹
大径极限
中径极限
小径max
螺胚直径
英寸牙数
系列代号
最小
最大
最小
最大
最小
8-36(0.164-36)
0.15770.16320.14240.14524.00564.14533.6173.6881
0.12913.2791
3.65
10-32(0.190-32)
0.18310.18910.16580.16884.65074.80314.21134.2875
0.15083.8303
4.24
12-28
UNF0.2085
(0.216-28)
5.2959
0.2150.18860.19185.4614.79044.8717
0.17124.3485
4.82
1/4-28(0.250-28)
0.24250.2490.22250.22586.15956.32465.65155.7353
0.20525.2121
5.69
5/16-24
0.30420.31140.28060.28430.26037.17
最大3.674.274.855.717.2
(0.3175-24)3/8-24
(0.375-24)7/16-20
(0.4375-20)1/2-20
(0.50-20)9/16-18(0.5625-18)
5/8-18(0.625-18)
7.72677.90967.12727.22126.6116
0.36670.37390.3430.34689.31429.49718.71228.8087
0.32288.1991
8.75
8.78
0.42810.43620.39950.403710.873711.079510.147310.254
0.374910.19
9.5225
10.23
0.49060.49870.46190.466212.461212.66711.732311.8415
0.437411.78
11.11
11.82
0.55240.56110.520514.03114.251913.2207
0.52513.335
0.492913.27
12.5197
13.31
0.61490.62360.58280.587515.618515.839414.803114.9225
0.555414.85
14.1072
14.89
3/4-16(0.750-16)
7/8-14(0.875-14)
1"-12(1.000-12)
0.73910.74850.70290.707918.773119.011917.853717.9807
0.671817.91
17.0637
17.95
0.86310.87340.82160.82721.922722.184420.868621.0058
0.785820.93
19.9593
20.97
0.98680.99820.93820.944125.064725.354323.830323.9801
0.89622.7584
23.9
23.95
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙数
螺纹系列代号
小径极限
最小
最大
中径极限
底孔直径
最小
最大
大径min最小
最大
8-32(0.164-32)
0.130.1390.14370.1475
0.164
3.4
3.5
3.3023.5306
3.653.74654.1656
10-24
0.1450.1560.16290.1672
0.19
3.75
3.9
(0.190-24)UNC3.6833.96244.13774.2469
4.826
12-24(0.216-24)
0.1710.1810.18890.19334.34344.59744.79814.9098
0.2164.4
5.4864
4.55
1/4-20
0.1960.2070.21750.2224
0.255.05
5.2
(0.250-20)5/16-18
(0.3175-18)3/8-16
(0.375-16)7/16-14
(0.4375-14)1/2-13
(0.50-13)9/16-12(0.5625-12)
4.97845.25785.52455.649
6.35
0.2526.4008
0.2650.27640.28176.7317.02067.1552
0.31257.9375
6.45
0.3070.3210.33440.34017.79788.15348.49388.6385
0.3759.525
7.85
0.360.3760.39110.39720.43759.2
9.1449.55049.933910.088911.1125
0.4170.434
0.450.4565
10.591811.023611.4311.5951
0.510.65
12.7
0.47211.9888
0.490.50840.515212.44612.913413.0861
0.562512.05
14.2875
6.689.410.912.3
5/8-11(0.625-11)
3/4-10(0.750-10)
7/8-9(0.875-9)
1"-8(1.000-8)
0.5270.5460.5660.573213.385813.868414.376414.5593
0.62513.45
15.875
0.6420.6630.6850.692716.306816.840217.39917.5946
0.7519.05
16.4
0.7550.7780.80280.81119.17719.761220.391120.5994
0.87522.225
19.3
0.865
0.890.91880.9276
21.97122.60623.337523.561
122.1
25.4
13.716.719.622.4
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-24UNC-2B(或0.190-24UNC-2B)、3/8-16UNC-2B(或0.375-16UNC-2B)
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺寸和每英寸牙数
螺纹系列代号
小径极限
最小
最大
中径极限
底孔直径
最小
最大
大径min最小
最大
8-36
UNF0.1340.1420.1460.1496
0.1643.45
3.67
(0.164-36)10-32
(0.190-32)12-28
(0.216-28)1/4-28
(0.250-28)5/16-24
(0.3175-24)3/8-24
(0.375-24)
3.40363.60683.70843.79984.1656
0.1560.1640.16970.17363.96244.16564.31044.4094
0.194
4.826
0.1770.1860.19280.1974.49584.72444.89715.0038
0.2165.4864
4.55
0.211
0.220.22680.2311
5.35945.5885.76075.8699
0.255.4
6.35
0.2670.2770.28540.29026.78187.03587.24927.3711
0.31257.9375
6.85
0.33
0.340.34790.3528
8.3828.6368.83678.9611
0.3759.525
8.45
4.274.855.717.28.78
7/16-20(0.4375-20)
1/2-20(0.50-20)9/16-18(0.5625-18)
5/8-18(0.625-18)
3/4-16(0.750-16)
7/8-14
0.3839.7282
0.39510.033
0.4050.410410.28710.4242
0.437511.1125
9.85
10.23
0.4460.4570.46750.473111.328411.607811.874512.0167
0.511.4
12.7
11.82
0.50212.7508
0.5150.52640.532313.08113.370613.5204
0.562512.85
14.2875
13.31
0.5650.5780.58890.594914.35114.681214.958115.1105
0.62514.45
15.875
14.89
0.6820.6960.70940.715917.322817.678418.018818.1839
0.7519.05
17.4
17.95
0.7980.8140.82860.8356
0.87520.35
20.97
(0.875-14)1"-12
(1.000-12)
20.269220.675621.046421.224222.225
0.910.9280.94590.953523.11423.571224.025924.2189
123.9
25.4
23.95
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。2.标记示例:10-32UNF-2B(或0.190-32UNF-2B)、3/8-24UNF-2B(或0.375-24UNF-2B)
篇十九:美制螺栓标准对照表
P> 美制螺纹标准对照表美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称
大径极限
螺纹
尺寸和
系列
每英寸
最小最大
代号
牙数
中径极限
螺胚直径
小径ma
最小最大x最小最大
8-32(0.164
0.
0.16
0.1420.12
1
0.1399
31
8
483.3.6
571
581
3.94.143.553.623.169
-32)
903273571
9
10-24(0.190-
UNC24)
0.180.18
0.161
0.1586
1890
9
4.64.80064.02844.1123
177
0.1
379
4.1
4.07
3.5
0
027
12-24
(0.216-24)
0.
0.18
20.2150
0.18790.1639
45
4.74.7
078
25
5.27
4.684.74.16
5.4610
81
6372731
1/4-20
0.0.2
0.216
5.5.4
0.2127
0.1876
24489
4
458
...内容来自网络...
(0.250-20)5/16-18
(0.3175-18)
3/8-16
(0.37516)7/
16-14(0.4375-14)
1/2-13
(0.5013)
9/16-
08
6.116.325.4025.494.76
6321
66650
0.3
0.2
0.243
0.3113
0.2752
026
712
1
6.946.98
7.67.9076.8
6.17
6.9901
860
0885
47
0.360.37
0.3330.2
0.3287
4337
19708.
8.44
9.259.492
8.4607.54340
8.3490
320
7
8
0.420.430.380.3890.3
586150
7
10.811.0769.7799.8
4859.839.87
8.8
1539
0984519
0.40.49
0.448
0.4435
0.4041
87685
5
11.11.
1
12.3
11.2611.310.2643438
2.661
850
49919
1
9
0.0.5600.50.500.4511
...内容来自网络...
12
(0.5625-1
2)5/8-11
(0.625-11)
3/4-10(0.750-10)
7/8-9
(0.875-9)
1"-8
549
901668872.2.84
5
80
1112.74012.8711.6
3.954.2627510
73469
0.60.6230.5580.5640.5
1134
9
4119
1
14.2
1
4.3
15.515.8314.19614.3
7
3.002
2
27044
1358
3
0.73
0.6770.60.62
0.7482
1
53
38325517.2
7.3
18.619.00417.2017.3515.888
3
766
33433
77
0.
0.873
0.800
859
0.7946
1
9
2
0.7
36820.2
1270.3221.22.1720.120.34
8.71482376782829
7
0.0.990.91
0.84423.22
0.9168
98000
623.
...内容来自网络...
(1.000-8)
830
27
2
25.323.11423.221.45
4.96
4920867
28
82
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺
大径极限
螺纹
寸和每
系列
英寸牙
最小最大
代号
数
中径极限最小最大
螺胚直径小径max最小最大
8-36
UNF(0.1
64-36)
0.10.163
0.129
0.14240.1452
5772
1
3.653.67
4.00
3.63.683.279
4.1453
56
17081
1
...内容来自网络...
10-32
(0.190-32)
12-28(0.216-28)
1/428
(0.250-28)
5/1624(0.3175-24)3/8-24(0.375-24)
0.10.1890.10.160.150
8311658884.6
4.28504.80314.2113
757
8
4.2
4.24
3.83
7
03
0.2
0.180.190.171
0.2150
085
8618
24.84.8
5.295.464.790
4.325
4.8717
5910
4
485
0.20.220.2
420.249025258
5
0.20
525.695.71
6.16.35.6
5.2
5.7353
595246515
121
0.30.310.280.280.260
042140643
37.17.2
7.727.9097.127
6.670
7.2212
6762
116
0.360.370.3430.3460.322
67390
8
8
8.7
8.75
9.319.498.78.8088.19
8
42711227
91
...内容来自网络...
7/16-20(0.4375-2
0)1/2-20
(0.5020)
9/16-18
(0.5625-18)5/8-18
(0.625-18)
3/4-16
0.42
0.390.4030.374
0.4362
81
957
9
10.110.2
10.
1
1
10.
9.52293
871.079
0.254
1473
5
375
0
0.490.498
0.4660.4
0.4619
067
2374
111.8
1
12.611.7311.811.111.782
篇二十:美制螺栓标准对照表
P> 美制螺纹标准对照表美制外螺纹(2A)常用规格极限尺寸表(粗牙)
公称尺寸
螺
和每英寸牙纹系列
数
代号
大径极限
最
最大
小
中径极限
最小
最大
小径max
8-32
螺胚直径
最
最
小
大
10-24
12-24
1/4-20
5/1618
3/8-16
7/16-
14
UNC
1/2-13
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-24UNC-2A(或、3/8-16UNC-2A(或
(注:表中上行斜体数值单位为英寸,下行为毫米)
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺
螺
寸和每英寸纹系列
牙数
代号
大径极限
最
小
最大
中径极限
最小
最大
小径max
8-36
螺胚直径
最
最
小
大
10-32
12-28
1/4-28
5/1624
3/8-24
7/1620
UNF
1/2-20
9/16-18
5/8-18
3/4-16
7/8-14
1"-12
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。2.标记示例:10-32UNF-2A(或、3/8-24UNF-2A(或
美制内螺纹(2B)常用规格极限尺寸表(粗牙)
公称尺寸和每英寸牙数
螺纹系列代
号
小径极限
最小
最大
中径极限
最小
最大
8-32
10-24
12-24
1/4-20
5/16-18
3/8-16
7/16-14UNC
1/2-13
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
大径min
底孔直径
最小
最大
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。
2.标记示例:10-24UNC-2B(或、3/8-16UNC-2B(或
美制内螺纹(2B)常用规格极限尺寸表(细牙)
公称尺
螺
寸和每英寸纹系列
牙数
代号
小径极限最
最大小
中径极限
最小
最大
大径min
8-36
底孔直径
最
最
小
大
10-32
12-28
1/4-28
5/1624
3/8-24
UNF
7/1620
1/2-20
9/16-18
5/8-18
3/4-16
7/8-141"-12
1.底孔直径指攻丝前钻孔直径,铸铁、黄铜等较软料取小值,钢、青铜等较硬料取大值。
2.标记示例:10-32UNF-2B(或、3/8-24UNF-2B(或
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