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M1.0×0.250.750.7850.729NO.1-64(1.854)1.551.5821.425M1.1×0.250.850.8850.829NO.2-56(2.184)1.801.8711.695M1.2×0.250.950.9850.985NO.3-48(2.515)2.102.1461.941M1.4×0.31.101.1421.075NO.4-40(2.845)2.302.3852.157M1.6×0.351.251.3211.221NO.5-40(3.175)2.602.6972.487M1.7×0.351.351.4211.321NO.6-32(3.505)2.802.8952.642M1.8×0.351.451.5211.421NO8-32(4.166)3.403.533.302M2.0×0.41.601.6791.567NO.10-24(4.826)3.903.9623.683M2.2×0.451.751.8381.713NO.12-24(5.486)4.504.5974.344M2.3×0.41.901.9791.8671/4-205.105.2574.979M2.5×0.452.102.1382.0135/16-186.606.7316.401M2.6×0.452.202.2382.1133/8-168.008.1537.798M3.0×0.52.502.5992.4597/16-149.409.559.144M3.0×0.62.402.4402.2801/2-1310.8011.02310.592M3.5×0.62.903.0102.8509/16-1212.2012.44611.989M4.0×0.73.303.4223.2425/8-1113.6012.86813.386M4.0×0.753.253.3263.1063/4-1016.5018.84016.307M4.5×0.753.803.8783.6887/8-919.5019.76119.177M5.0×0.84.204.3344.134122.2022.60621.971M5.0×0.94.104.1703.9301-1/8-725.0025.34924.638M6.0×1.05.005.1534.9171-1/4-728.2028.52427.813M7.0×1.06.006.1535.9171-3/8-630.8031.11530.353M8.0×1.256.806.9126.6471-1/2-634.0034.29033.528M9.0×1.257.807.9127.6471-3/4-539.5039.82738.964M10×1.58.508.6768.3762-4-1/245.2045.59344.679M11×1.59.509.6769.376M12×1.7510.3010.44110.106M14×2.012.0012.21011.835M16×2.014.0014.21013.835M18×2.515.5015.74415.294M20×2.517.5017.74417.294M22×2.519.5019.74419.294M24×3.021.0021.25220.752M27×3.024.0024.25223.752M30×3.526.5026.77126.211签名档：规格M1.0×0.21.1×0.21.2×0.2M1.4×0.21.6×0.21.7×0.21.8×0.22.0×0.252.2×0.252.3×0.252.5×0.352.6×0.35螺丝攻牙钻孔径和滚丝径对照表公制细螺纹2级牙钻孔径标准径最大最小0.800.901.001.201.401.451.601.751.952.052.202.200.8210.9211.0211.2211.4211.5001.6211.7851.9852.0612.2212.246M3.5×0.353.203.2213.121M4.0×0.53.503.5993.459M4.5×0.54.004.0993.959M5.0×0.54.504.5994.459M3.0×0.352.702.7212.621规格（UNC）美制细螺纹标准径2级牙钻孔径NO.0-80(1.524)1.251.305NO.1-72(1.854)1.551.612NO.2-64(2.184)1.851.912NO.3-56(2.515)2.102.197NO.4-48(2.845)2.402.458NO.5-44(3.175)2.702.740NO.6-40(3.505)2.903.022NO.8-36(4.166)3.503.606NO.10-32(4.826)4.104.165NO.12-28(5.846)4.604.7241/4-285.505.5885/16-246.907.0353/8-248.508.6367/16-209.9010.0331/2-2011.5011.6079/16-1812.9013.0815/8-1814.5014.681最大0.7831.1820.8831.4740.9831.7561.1832.0251.3832.2711.4602.5511.5832.8201.7293.4041.9293.9632.0014.4962.1215.3602.1866.7828.3829.72911.32912.75114.351最小5.5×0.56.0×0.756.0×0.57.0×0.757.0×0.58.0×1.0M8.0×0.75M8.0×0.59.0×1.09.0×0.7510×1.2510×1.0M10×0.75M10×0.55.005.0995.305.3785.505.5506.30.3786.507.007.307.508.008.308.809.009.309.506.5507.1537.3787.5208.1538.3788.9129.1539.3789.5209.4003/4-1617.5017.6787/8-1420.5020.6751-1223.2023.5711-1/8-1226.5026.7461-1/4-1229.5029.9211-3/8-1232.8033.0961-1/2-1236.0036.2714.95917.3235.18820.2705.40023.1146.18826.2896.40029.4646.9177.1887.4007.9178.1888.6478.9179.18832.63935.814螺丝攻牙钻孔径和滚丝径对照表公制细螺纹规格标准径2级牙钻孔径最大最小M11×1.010.0010.1539.917规格（UNC）美制细螺纹2级牙钻孔径标准径最大最小M11×0.7510.3010.37810.188M12×1.510.5010.67610.376M12×1.2510.8010.91210.647M12×1.011.0011.15310.917M12×0.511.5011.52011.400M14×1.512.5012.67612.376M14×1.013.0013.15312.917M15×1.513.5013.67613.376M15×1.014.0014.15313.917M16×1.514.5014.67614.376M16×1.015.0015.15314.917M17×1.515.5015.67615.376M17×1.016.0016.15315.917M18×2.016.0016.21015.835M18×1.516.5016.67616.376M18×1.017.0017.15316.917M20×2.018.0018.21017.835M20×1.518.5018.67618.376M20×1.019.0019.15318.917M22×2.020.0020.21019.835M22×1.520.5020.67620.376M22×1.021.0021.15320.917M24×2.022.0022.21021.835M24×1.522.5022.67622.376M24×1.023.0023.15322.917M25×2.023.0023.21022.835M25×1.523.5023.67623.376M25×1.024.0024.15323.917M26×1.524.5024.67624.376M27×2.025.0025.21024.835M27×1.525.5025.67625.376M27×1.026.0026.15325.917M28×2.026.0026.21025.835M28×1.526.5026.67626.376M28×1.027.0027.15326.917M30×3.027.0027.25226.752M30×2.028.0028.21027.835M30×1.528.5028.67628.376M30×1.029.0029.15328.917M32×2.030.0030.21029.835M32×1.530.5030.67630.376M33×3.030.0030.25229.752M33×2.031.0031.21030.835M33×1.531.5031.67631.376M35×1.533.5033.67633.376M36×3.033.0033.25232.752M36×2.034.0034.21033.835M36×1.534.5034.67634.376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-G8G9M1.0×0.250.860.88－NO.2-56UNC1.94－－M1.1×0.250.960.98－NO.3-482.23－－M1.2×0.251.061.08－NO.4-402.50－－M1.4×0.31.241.25－NO.5-402.83－－M1.6×0.351.411.43－NO.6-323.07－－M1.7×0.351.511.53－NO.8-323.733.77－M1.8×0.351.611.63－NO.10-244.244.3－M2.0×0.41.781.80－NO.12-244.904.96－M2.2×0.451.951.98－1/4-20－5.72－M2.3×0.42.082.10－5/16-18－7.24－M2.5×0.45M2.6×0.452.252.28－3/8-16－8.748.812.352.38－7/16-14－10.2010.30M3.0×0.52.732.75－1/2-13－11.2711.82M3.5×0.63.173.20－NO.2-64UNF1.97－－M4.0×0.73.623.653.69NO.3-562.27－－M5.0×0.84.564.604.64NO.4-482.56－－M6.0×1.05.455.505.55NO.5-442.86－－M7.0×1.06.456.506.55NO.6-403.16－－M8.0×1.257.317.387.44NO.8-363.78－－M10×1.5M10×1.259.189.259.32NO.10-324.394.43－9.319.389.44NO.12-284.995.04－M12×1.7511.0411.1211.211/4-285.855.90－M12×1.2511.3111.3811.445/16-247.367.41－3/8-24－9.00－7/16-20－10.4810.541/2-20－12.0712.13签名档：美制特细螺纹英制电器螺纹规格标准径2级牙钻孔径规格钻孔径最大最小NO.12-324.704.8264.6232BA4.0-4.21/4-325.605.6905.4863BA5/16-327.107.2647.0874BA3.0-3.23/8-328.708.8658.6615BA2.7-2.87/16-2810.2010.33810.1356BA2.4-2.51/2-2811.8011.93811.7099/16-2413.2013.38613.1325/8-2414.8014.98614.7323/4-2017.8017.95817.6787/8-2021.0021.13320.8531-2024.0024.30824.028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W1/8-402.652.60M3×0.52.63-2.60SM1/8-402.735-2.688W5/32-323.253.20M3.0×0.62.56-2.53SM1/8-442.769-2.722W3/16-243.753.70M3.5×0.63.06-3.03SM9/64-403.128-3.083W1/4-205.105.00M4.0×0.73.49-3.45SM11/64-403.855-3.805W5/16-186.606.50M4.0×0.753.45-3.41SM3/16-324.205-4.155W3/8-168.007.90M4.5×0.753.96-3.92SM3/16-284.143-4.093W7/16-149.409.30M5.0×0.84.43-4.38SM7/32-325.003-4.955W1/2-1210.7010.50M5.0×0.94.36-4.31SM15/64-285.325-5.570W9/16-1212.3012.00M6.0×1.05.30-5.25SM1/4-405.890-5.735W5/8-1113.7013.50M7.0×1.06.30-6.25SM1/4-285.721-5.366W3/4-1016.7016.50M8.0×1.07.28-7.23SM9/32-286.508-6.648W7/8-919.5019.30M8.0×1.257.12-7.07SM11/32-288.092-8.432W1-822.4022.00SM3/8-288.880-8.015W1-1/8-725.0024.80SM7/16-2810.466-10.401W1-1/4-728.3028.00SM7/16-1610.037-9.967SM1/2-2011.819-11.749SM9/26-2013.400-13.425签名档：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）中之毋螺牙径标准长度（最小）中之毋螺牙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PS1/16-286.506.6326.490PT1/16-286.106.206.2446.3841/16-276.106.256.35PS1/88.508.6378.495PT1/88.108.208.2498.3881/8-278.338.438.74-28-28PS1/4-1911.4011.54911.341PT1/4-1910.7011.0010.96211.1741/4-1810.7211.1311.13PS3/8-1915.0015.05414.846PT3/8-1914.2014.5014.44814.6583/8-1814.2714.2714.68PS1/2-1418.5018.77318.489PT1/2-1417.6018.0017.97918.2631/2-1417.4817.8618.26PS3/4-1424.0024.25923.975PT3/4-1423.0023.5023.37823.6633/4-1422.6323.0123.42PS1-1130.2030.47130.111PT11129.0029.5029.45929.8221-11-1/228.5828.9829.36PSPT1-1/438.8039.13238.7721-1/437.5038.0037.97638.3391-1/4-11-1/237.3137.6938.10-11-11PSPT1-1/244.8045.02544.6651-1/243.4044.0043.86944.2321-1/2-11-1/243.6644.0444.45-11-11PS2-1156.5056.83656.476PT2-1154.9055.5055.41255.8442-11-1/255.5855.9656.36签名档：英制螺纹螺母孔径英制纹螺圆拄螺纹管螺纹直径每英寸钻头直径（毫米）螺纹直径（英寸）每英寸钻头直径（毫米）（英寸）牙数铸铁、黄铜、青铜钢、可锻铸铁牙数3/16243.83.91/8288.81/4205.15.21/41911.75/16186.66.73/81915.23/81688.11/21418.91/21210.610.73/41424.45/81113.613.811130.63/41016.616.81/411139.27/8919.519.73/811141.61822.322.51/211145.11/8172525.2