螺丝攻牙钻孔径和滚丝径对照表.docx

1、螺丝攻牙钻孔径和滚丝径对照表螺丝攻牙钻孔径和滚丝径对照表公制粗螺纹美制粗螺纹规格标准径2级牙钻孔径规格（UNC）标准径2级牙钻孔径最大最小最大最小M1.00.250.750.7850.729NO.1-64(1.854)1.551.5821.425M1.10.250.850.8850.829NO.2-56(2.184)1.801.8711.695M1.20.250.950.9850.985NO.3-48(2.515)2.102.1461.941M1.40.31.101.1421.075NO.4-40(2.845)2.302.3852.157M1.60.351.251.3211.221NO.5-4

2、0(3.175)2.602.6972.487M1.70.351.351.4211.321NO.6-32(3.505)2.802.8952.642M1.80.351.451.5211.421NO8-32(4.166)3.403.533.302M2.00.41.601.6791.567NO.10-24(4.826)3.903.9623.683M2.20.451.751.8381.713NO.12-24(5.486)4.504.5974.344M2.30.41.901.9791.8671/4-205.105.2574.979M2.50.452.102.1382.0135/16-186.606.731

3、6.401M2.60.452.202.2382.1133/8-168.008.1537.798M3.00.52.502.5992.4597/16-149.409.559.144M3.00.62.402.4402.2801/2-1310.8011.02310.592M3.50.62.903.0102.8509/16-1212.2012.44611.989M4.00.73.303.4223.2425/8-1113.6012.86813.386M4.00.753.253.3263.1063/4-1016.5018.84016.307M4.50.753.803.8783.6887/8-919.5019

4、.76119.177M5.00.84.204.3344.134122.2022.60621.971M5.00.94.104.1703.9301-1/8-725.0025.34924.638M6.01.05.005.1534.9171-1/4-728.2028.52427.813M7.01.06.006.1535.9171-3/8-630.8031.11530.353M8.01.256.806.9126.6471-1/2-634.0034.29033.528M9.01.257.807.9127.6471-3/4-539.5039.82738.964M101.58.508.6768.3762-4-

5、1/245.2045.59344.679M111.59.509.6769.376M121.7510.3010.44110.106M142.012.0012.21011.835M162.014.0014.21013.835M182.515.5015.74415.294M202.517.5017.74417.294M222.519.5019.74419.294M243.021.0021.25220.752M273.024.0024.25223.752M303.526.5026.77126.211签名档：螺丝攻牙钻孔径和滚丝径对照表公制细螺纹美制细螺纹规格标准径2级牙钻孔径规格（UNC）标准径2级牙

6、钻孔径最大最小最大最小M1.00.20.800.8210.783NO.0-80(1.524)1.251.3051.182M1.10.20.900.9210.883NO.1-72(1.854)1.551.6121.474M1.20.21.001.0210.983NO.2-64(2.184)1.851.9121.756M1.40.21.201.2211.183NO.3-56(2.515)2.102.1972.025M1.60.21.401.4211.383NO.4-48(2.845)2.402.4582.271M1.70.21.451.5001.460NO.5-44(3.175)2.702.740

7、2.551M1.80.21.601.6211.583NO.6-40(3.505)2.903.0222.820M2.00.251.751.7851.729NO.8-36(4.166)3.503.6063.404M2.20.251.951.9851.929NO.10-32(4.826)4.104.1653.963M2.30.252.052.0612.001NO.12-28(5.846)4.604.7244.496M2.50.352.202.2212.1211/4-285.505.5885.360M2.60.352.202.2462.1865/16-246.907.0356.782M3.00.352

8、.702.7212.6213/8-248.508.6368.382M3.50.353.203.2213.1217/16-209.9010.0339.729M4.00.53.503.5993.4591/2-2011.5011.60711.329M4.50.54.004.0993.9599/16-1812.9013.08112.751M5.00.54.504.5994.4595/8-1814.5014.68114.351M5.50.55.005.0994.9593/4-1617.5017.67817.323M6.00.755.305.3785.1887/8-1420.5020.67520.270M

9、6.00.55.505.5505.4001-1223.2023.57123.114M7.00.756.306.3786.1881-1/8-1226.5026.74626.289M7.00.56.506.5506.4001-1/4-1229.5029.92129.464M8.01.07.007.1536.9171-3/8-1232.8033.09632.639M8.00.757.307.3787.1881-1/2-1236.0036.27135.814M8.00.57.507.5207.400M9.01.08.008.1537.917M9.00.758.308.3788.188M101.258.

10、808.9128.647M101.09.009.1538.917M100.759.309.3789.188M100.59.509.5209.400螺丝攻牙钻孔径和滚丝径对照表公制细螺纹美制细螺纹规格标准径2级牙钻孔径规格（UNC）标准径2级牙钻孔径最大最小最大最小M111.010.0010.1539.917M110.7510.3010.37810.188M121.510.5010.67610.376M121.2510.8010.91210.647M121.011.0011.15310.917M120.511.5011.52011.400M141.512.5012.67612.376M141.0

11、13.0013.15312.917M151.513.5013.67613.376M151.014.0014.15313.917M161.514.5014.67614.376M161.015.0015.15314.917M171.515.5015.67615.376M171.016.0016.15315.917M182.016.0016.21015.835M181.516.5016.67616.376M181.017.0017.15316.917M202.018.0018.21017.835M201.518.5018.67618.376M201.019.0019.15318.917M222.02

12、0.0020.21019.835M221.520.5020.67620.376M221.021.0021.15320.917M242.022.0022.21021.835M241.522.5022.67622.376M241.023.0023.15322.917M252.023.0023.21022.835M251.523.5023.67623.376M251.024.0024.15323.917M261.524.5024.67624.376M272.025.0025.21024.835M271.525.5025.67625.376M271.026.0026.15325.917M282.026

13、.0026.21025.835M281.526.5026.67626.376M281.027.0027.15326.917M303.027.0027.25226.752M302.028.0028.21027.835M301.528.5028.67628.376M301.029.0029.15328.917M322.030.0030.21029.835M321.530.5030.67630.376M333.030.0030.25229.752M332.031.0031.21030.835M331.531.5031.67631.376M351.533.5033.67633.376M363.033.

14、0033.25232.752M362.034.0034.21033.835M361.534.5034.67634.376签名档： 螺丝攻牙钻孔径和滚丝径对照表公制挤压丝攻钻孔径美制挤压丝攻钻孔径规格精度等级规格（UNC）精度等级G4-G6G7-G8G9G4-G6G7-G8G9M1.00.250.860.88NO.2-56UNC1.94M1.10.250.960.98NO.3-482.23M1.20.251.061.08NO.4-402.50M1.40.31.241.25NO.5-402.83M1.60.351.411.43NO.6-323.07M1.70.351.511.53NO.8-323.

15、733.77M1.80.351.611.63NO.10-244.244.3M2.00.41.781.80NO.12-244.904.96M2.20.451.951.981/4-205.72M2.30.42.082.105/16-187.24M2.50.452.252.283/8-168.748.81M2.60.452.352.387/16-1410.2010.30M3.00.52.732.751/2-1311.2711.82M3.50.63.173.20NO.2-64UNF1.97M4.00.73.623.653.69NO.3-562.27M5.00.84.564.604.64NO.4-482

16、.56M6.01.05.455.505.55NO.5-442.86M7.01.06.456.506.55NO.6-403.16M8.01.257.317.387.44NO.8-363.78M101.59.189.259.32NO.10-324.394.43M101.259.319.389.44NO.12-284.995.04M121.7511.0411.1211.211/4-285.855.90M121.2511.3111.3811.445/16-247.367.413/8-249.007/16-2010.4810.541/2-2012.0712.13签名档： 美制特细螺纹英制电器螺纹规格标准

17、径2级牙钻孔径规格钻孔径最大最小NO.12-324.704.8264.6232BA4.0-4.21/4 -325.605.6905.4863BA5/16 -327.107.2647.0874BA3.0-3.23/8 -328.708.8658.6615BA2.7-2.87/16 -2810.2010.33810.1356BA2.4-2.51/2 -2811.8011.93811.7099/16 -2413.2013.38613.1325/8 -2414.8014.98614.7323/4 -2017.8017.95817.6787/8 -2021.0021.13320.8531 -2024.0

18、024.30824.028签名档： 螺丝攻牙钻孔径和滚丝径对照表英制螺纹公制螺纹针车用螺纹规格(UNEF)钻孔径规格滚丝径规格滚丝径硬材软材W 1/8 - 402.652.60M30.52.63-2.60SM1/8-402.735-2.688W 5/32 - 323.253.20M3.00.62.56-2.53SM1/8-442.769-2.722W 3/16- 243.753.70M3.50.63.06-3.03SM9/64-403.128-3.083W 1/4 - 205.105.00M4.00.73.49-3.45SM11/64-403.855-3.805W 5/16 - 186.606

19、.50M4.00.753.45-3.41SM3/16-324.205-4.155W 3/8 - 168.007.90M4.50.753.96-3.92SM3/16-284.143-4.093W 7/16 - 149.409.30M5.00.84.43-4.38SM7/32-325.003-4.955W 1/2 - 1210.7010.50M5.00.94.36-4.31SM15/64-285.325-5.570W 9/16 - 1212.3012.00M6.01.05.30-5.25SM1/4-405.890-5.735W 5/8 - 1113.7013.50M7.01.06.30-6.25S

20、M1/4-285.721-5.366W 3/4 - 1016.7016.50M8.01.07.28-7.23SM9/32-286.508-6.648W 7/8 - 919.5019.30M8.01.257.12-7.07SM11/32-288.092-8.432W1 - 822.4022.00SM3/8-288.880-8.015W 1-1/8 - 725.0024.80SM7/16-2810.466-10.401W 1 - 1/4 - 728.3028.00SM7/16-1610.037-9.967SM1/2-2011.819-11.749SM9/26-2013.400-13.425签名档：

21、 英制管螺纹英制管螺纹美制管螺纹规格标准径钻孔径规格标准径有交牙部之长度（最小）中之毋螺牙内径标准长度（最小）中之毋螺牙内径规格钻孔径最大最小使用绞刀时不用绞刀时NPTNPS使用绞刀时不用绞刀时PS 1/16 - 286.506.6326.490PT 1/16 - 286.106.206.2446.3841/16 - 276.106.256.35PS 1/8 - 288.508.6378.495PT 1/8 - 288.108.208.2498.3881/8 - 278.338.438.74PS 1/4 - 1911.4011.54911.341PT 1/4 - 1910.7011.0010.96211.1741/4 - 1810.7211.1311.13PS 3/8 - 1915.0015.05414.846PT 3/8 - 1914.2014.5014.44814.6583/8 - 1814.2714.2714.68PS 1/2 - 1418.5018.77318.489PT 1/2 - 1417.6018.0017.97918.2631/2 - 1417.4817.8618.26PS 3/4 -1424.0024.25923.975PT 3/4 - 1423.0023.5023.37823.6633/4 - 1422.6323.0123.42PS 1