螺丝攻牙钻孔径和滚丝径对照表
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最大最小最大最小M1.0×0.250.750.7850.729NO.1-64(1.854) 1.55 1.582 1.425M1.1×0.250.850.8850.829NO.2-56(2.184) 1.80 1.871 1.695M1.2×0.250.950.9850.985NO.3-48(2.515) 2.10 2.146 1.941M1.4×0.3 1.10 1.142 1.075NO.4-40(2.845) 2.30 2.385 2.157M1.6×0.35 1.25 1.321 1.221NO.5-40(3.175) 2.60 2.697 2.487M1.7×0.35 1.35 1.421 1.321NO.6-32(3.505) 2.80 2.895 2.642M1.8×0.35 1.45 1.521 1.421NO8-32(4.166) 3.40 3.53 3.302M2.0×0.4 1.60 1.679 1.567NO.10-24(4.826) 3.90 3.962 3.683M2.2×0.45 1.75 1.838 1.713NO.12-24(5.486) 4.50 4.597 4.344M2.3×0.4 1.90 1.979 1.8671/4-20 5.10 5.257 4.979M2.5×0.45 2.10 2.138 2.0135/16-18 6.60 6.731 6.401M2.6×0.45 2.20 2.238 2.1133/8-168.008.1537.798M3.0×0.5 2.50 2.599 2.4597/16-149.409.559.144M3.0×0.6 2.40 2.440 2.2801/2-1310.8011.02310.592M3.5×0.6 2.90 3.010 2.8509/16-1212.2012.44611.989M4.0×0.7 3.30 3.422 3.2425/8-1113.6012.86813.386M4.0×0.75 3.25 3.326 3.1063/4-1016.5018.84016.307M4.5×0.75 3.80 3.878 3.6887/8-919.5019.76119.177M5.0×0.8 4.20 4.334 4.134122.2022.60621.971M5.0×0.9 4.10 4.170 3.9301-1/8-725.0025.34924.638M6.0×1.0 5.00 5.153 4.9171-1/4-728.2028.52427.813M7.0×1.0 6.00 6.153 5.9171-3/8-630.8031.11530.353M8.0×1.25 6.80 6.912 6.6471-1/2-634.0034.29033.528M9.0×1.257.807.9127.6471-3/4-539.5039.82738.964M10×1.58.508.6768.3762-4-1/245.2045.59344.679M11×1.59.509.6769.376M12×1.7510.3010.44110.106M14×2.012.0012.21011.835M16×2.014.0014.21013.835M18×2.515.5015.74415.294M20×2.517.5017.74417.294M22×2.519.5019.74419.294M24×3.021.0021.25220.752M27×3.024.0024.25223.752M30×3.526.5026.77126.211螺丝攻牙钻孔径和滚造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M1.0×0.20.800.8210.783NO.0-80(1.524) 1.25 1.305 1.182M1.1×0.20.900.9210.883NO.1-72(1.854) 1.55 1.612 1.474M1.2×0.2 1.00 1.0210.983NO.2-64(2.184) 1.85 1.912 1.756M1.4×0.2 1.20 1.221 1.183NO.3-56(2.515) 2.10 2.197 2.025M1.6×0.2 1.40 1.421 1.383NO.4-48(2.845) 2.40 2.458 2.271M1.7×0.2 1.45 1.500 1.460NO.5-44(3.175) 2.70 2.740 2.551M1.8×0.2 1.60 1.621 1.583NO.6-40(3.505) 2.90 3.022 2.820M2.0×0.25 1.75 1.785 1.729NO.8-36(4.166) 3.50 3.606 3.404M2.2×0.25 1.95 1.985 1.929NO.10-32(4.826) 4.10 4.165 3.963M2.3×0.25 2.05 2.061 2.001NO.12-28(5.846)4.60 4.724 4.496M2.5×0.35 2.20 2.221 2.1211/4-285.50 5.588 5.360M2.6×0.35 2.20 2.246 2.1865/16-246.907.035 6.782M3.0×0.35 2.70 2.721 2.6213/8-248.508.6368.382M3.5×0.35 3.20 3.221 3.1217/16-209.9010.0339.729M4.0×0.5 3.50 3.599 3.4591/2-2011.5011.60711.329M4.5×0.5 4.00 4.099 3.9599/16-1812.9013.08112.751M5.0×0.5 4.50 4.599 4.4595/8-1814.5014.68114.351M5.5×0.5 5.00 5.099 4.9593/4-1617.5017.67817.323M6.0×0.75 5.30 5.378 5.1887/8-1420.5020.67520.270M6.0×0.5 5.50 5.550 5.4001-1223.2023.57123.114M7.0×0.75 6.30 6.378 6.1881-1/8-1226.5026.74626.289M7.0×0.56.506.5506.4001-1/4-1229.5029.92129.464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M8.0×1.07.007.153 6.9171-3/8-1232.8033.09632.639M8.0×0.757.307.3787.1881-1/2-1236.0036.27135.814M8.0×0.57.507.5207.400M9.0×1.08.008.1537.917M9.0×0.758.308.3788.188M10×1.258.808.9128.647M10×1.09.009.1538.917M10×0.759.309.3789.188M10×0.59.509.5209.400M11×1.010.0010.1539.917M11×0.7510.3010.37810.188M12×1.510.5010.67610.376M12×1.2510.8010.91210.647M12×1.011.0011.15310.917M12×0.511.5011.52011.400M14×1.512.5012.67612.376M14×1.013.0013.15312.917M15×1.513.5013.67613.376M15×1.014.0014.15313.917M16×1.514.5014.67614.376M16×1.015.0015.15314.917M17×1.515.5015.67615.376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M17×1.016.0016.15315.917M18×2.016.0016.21015.835M18×1.516.5016.67616.376M18×1.017.0017.15316.917M20×2.018.0018.21017.835M20×1.518.5018.67618.376M20×1.019.0019.15318.917M22×2.020.0020.21019.835M22×1.520.5020.67620.376M22×1.021.0021.15320.917M24×2.022.0022.21021.835M24×1.522.5022.67622.376M24×1.023.0023.15322.917M25×2.023.0023.21022.835M25×1.523.5023.67623.376M25×1.024.0024.15323.917M26×1.524.5024.67624.376M27×2.025.0025.21024.835M27×1.525.5025.67625.376M27×1.026.0026.15325.917M28×2.026.0026.21025.835M28×1.526.5026.67626.376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M28×1.027.0027.15326.917M30×3.027.0027.25226.752M30×2.028.0028.21027.835M30×1.528.5028.67628.376M30×1.029.0029.15328.917M32×2.030.0030.21029.835M32×1.530.5030.67630.376M33×3.030.0030.25229.752M33×2.031.0031.21030.835M33×1.531.5031.67631.376M35×1.533.5033.67633.376M36×3.033.0033.25232.752M36×2.034.0034.21033.835M36×1.534.5034.67634.376规格标准径2级牙钻孔径规格(UNC)标准径2级牙钻孔径G4-G6G7-G8G9G4-G6G7-G8G9M1.0×0.250.860.88-NO.2-56UNC 1.94--M1.1×0.250.960.98-NO.3-48 2.23--M1.2×0.25 1.06 1.08-NO.4-40 2.50--M1.4×0.3 1.24 1.25-NO.5-40 2.83--M1.6×0.35 1.41 1.43-NO.6-32 3.07--M1.7×0.35 1.51 1.53-NO.8-32 3.73 3.77-M1.8×0.35 1.61 1.63-NO.10-24 4.24 4.3-M2.0×0.4 1.78 1.80-NO.12-24 4.90 4.96-M2.2×0.45 1.95 1.98-1/4-20- 5.72-M2.3×0.4 2.08 2.10-5/16-18-7.24-M2.5×0.45 2.25 2.28-3/8-16-8.748.81M2.6×0.45 2.35 2.38-7/16-14-10.2010.30M3.0×0.5 2.73 2.75-1/2-13-11.2711.82M3.5×0.6 3.17 3.20-NO.2-64UNF 1.97--M4.0×0.7 3.62 3.65 3.69NO.3-56 2.27--M5.0×0.8 4.56 4.60 4.64NO.4-48 2.56--M6.0×1.0 5.45 5.50 5.55NO.5-44 2.86--M7.0×1.0 6.45 6.50 6.55NO.6-40 3.16--M8.0×1.257.317.387.44NO.8-36 3.78--M10×1.59.189.259.32NO.10-32 4.39 4.43-M10×1.259.319.389.44NO.12-28 4.99 5.04-M12×1.7511.0411.1211.211/4-28 5.85 5.90-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螺丝攻牙钻孔径和滚造径对照表公制迫牙丝攻钻孔径美制迫牙丝攻钻孔径规格精度等级规格精度等级最大最小NO.12-32 4.70 4.826 4.6232BA 4.0-41/4 -32 5.60 5.690 5.4863BA 5/16 -327.107.2647.0874BA 3.0-33/8 -328.708.8658.6615BA 2.7-27/16 -2810.2010.33810.1356BA2.4-21/2 -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美制特细螺纹英制电器螺纹规格钻孔规格(UNEF)标准径2级牙钻孔径使用绞刀时不用绞刀时PS 1/16 - 28 6.50 6.632 6.490PT 1/16 - 28 6.10 6.20 6.244 6.3841/16 - 27 6.10 6.25 6.35PS 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 - 1130.2030.47130.111PT 1- 1129.0029.5029.45929.822 1 - 11-1/228.5828.9829.36PS 1-1/4 - 1138.8039.13238.772PT 1-1/4 - 1137.5038.0037.97638.3391-1/4-11-1/237.3137.6938.10PS 1-1/2 - 1144.8045.02544.665PT 1-1/2 - 1143.4044.0043.86944.2321-1/2-11-1/243.6644.0444.45PS 2 - 1156.5056.83656.476PT 2 - 1154.9055.5055.41255.8442 - 11 - 1/255.5855.9656.36钻孔径最大最小使用纹刀时不用纹刀时NPTNPS 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规格标准径钻孔径规格螺丝攻牙钻孔径和滚造径对照表英制管螺纹英制管螺纹美制管螺纹硬材软材W 1/8 - 40 2.65 2.60M3×0.5 2.63-2.60SM1/8-40 2.735-2.688W 5/32 - 32 3.25 3.20M3.0×0.6 2.56-2.53SM1/8-44 2.769-2.722W 3/16 - 24 3.75 3.70M3.5×0.6 3.06-3.03SM9/64-40 3.128-3.083W 1/4 - 20 5.10 5.00M4.0×0.7 3.49-3.45SM11/64-40 3.855-3.805W 5/16 - 18 6.60 6.50M4.0×0.75 3.45-3.41SM3/16-32 4.205-4.155W 3/8 - 168.007.90M4.5×0.75 3.96-3.92SM3/16-28 4.143-4.093W 7/16 - 149.409.30M5.0×0.8 4.43-4.38SM7/32-32 5.003-4.955W 1/2 - 1210.7010.50M5.0×0.9 4.36-4.31SM15/64-28 5.325-5.570W 9/16 - 1212.3012.00M6.0×1.0 5.30-5.25SM1/4-40 5.890-5.735W 5/8 - 1113.7013.50M7.0×1.0 6.30-6.25SM1/4-28 5.721-5.366W 3/4 - 1016.7016.50M8.0×1.07.28-7.23SM9/32-28 6.508-6.648W 7/8 - 919.5019.30M8.0×1.257.12-7.07SM11/32-288.092-8.432W1 - 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规格滚造径规格(UNEF)钻孔径规格滚造径螺丝攻牙钻孔径和滚造径对照表英制螺纹公制螺纹针车用螺纹。