螺丝攻牙钻孔径和滚造径对照表

公 制 粗 螺 紋公 制 細 螺 紋無溝絲攻鑽孔徑英 制 螺 紋英 制 粗 螺 紋 規 格標準徑 2級牙鑽孔徑 規 格標準徑 2級牙鑽孔徑 規 格 精度等級 規 格 鑽孔徑規格(UNC) 最大最小最大最小G4-G6 G7-G8G9硬材軟材NO.5-40 M1.00.250.750.7850.729M121.011.0011.15310.917M1.00.250.860.88W 1/8-402.652.60NO.6-32 M1.10.250.850.8850.829M120.511.5011.52011.400M1.10.250.960.98W 5/32-323.253.20NO.8-32 M1.20.250.950.9850.929M141.512.5012.67612.376M1.20.251.061.08W 3/16-243.753.70NO.10-24 M1.40.31.101.1421.075M141.013.0013.15312.917M1.40.31.241.25W 1/4-205.105.00NO.12-24 M1.60.351.251.3211.221M151.513.5013.67613.376M1.60.351.411.43W 5/16-186.606.501/4-20 M1.70.351.351.4211.321M151.014.0014.15313.917M1.70.351.511.53W 3/8-168.007.905/16-18 M1.80.351.451.5211.421M161.514.5014.67614.376M1.80.351.611.63W 7/16-149.409.303/8-16 M2.00.41.601.6791.567M161.015.0015.15314.917M2.00.41.781.80W 1/2-1210.7010.507/16-14 M2.20.451.751.8381.713M171.515.5015.67615.376M2.20.451.951.98W 9/16-1212.3012.001/2-13 M2.30.41.901.9791.867M171.016.0016.15315.917M2.30.42.082.10W 5/8-1113.7013.509/16-12 M2.50.452.102.1382.013M182.016.0016.21015.835M2.50.452.252.28W 3/4-1016.7016.50 M2.60.452.202.2382.113M181.516.5016.67616.376M2.60.452.352.38W 7/8-919.5019.30英 制 細 螺 紋 M3.00.52.502.5992.459M181.017.0017.15316.917M3.00.52.732.75W 1-822.4022.00規格(UNF) M3.00.62.402.4402.280M202.018.0018.21017.835M3.50.63.173.20W 1-1/8-725.0024.80NO.5-40 M3.50.62.903.0102.850M201.518.5018.67618.376M4.00.73.623.653.69W 1-1/4-728.3028.00NO.6-32 M4.00.73.303.4223.242M201.019.0019.15318.917M5.00.84.564.604.64NO.8-32 M4.00.753.253.3263.106M222.020.0020.21019.835M6.01.05.455.505.55英 制 管 螺 紋NO.10-24 M4.50.753.803.8783.688M221.520.5020.67620.376M7.01.06.456.506.55 規 格標準徑 鑽孔徑NO.12-24 M5.00.84.204.3344.134M221.021.0021.15320.917M8.01.257.317.387.44最大最小1/4-20 M5.00.94.104.1703.930M242.022.0022.21021.835M101.59.189.259.32PS 1/16-286.506.6326.4905/16-18 M6.01.05.005.1534.917M241.522.5022.67622.376M101.259.319.389.44PS 1/8-288.508.6378.4953/8-16 M7.01.06.006.1535.917M241.023.0023.15322.917M121.7511.0411.1211.21PS 1/4-1911.4011.54911.3417/16-14 M8.01.256.806.9126.647M252.023.0023.21022.835M121.2511.3111.3811.44PS 3/8-1915.0015.05414.8461/2-13 M9.01.257.807.9127.647M251.523.5023.67623.376注: 無槽溝絲攻之鑽孔徑，在上表所PS 1/2-1418.5018.77318.489 M1.01.58.508.6768.376M251.024.0024.15323.917列之數值，由於被加工材料之材PS 3/4-1424.0024.25923.975針車用螺紋 M111.59.509.6769.376M261.524.5024.67624.376質、硬度、形狀、尺寸等之影響PS 1-1130.2030.47130.111規 格 M121.7510.3010.44110.106M272.025.0025.21024.835，多少會有所變動，因此於參考PS 1-1/4-1138.8039.13238.772SM 1/8 -40 M142.012.0012.21011.835M271.525.5025.67625.376上表之同時，亦請增減若干。PS 1-1/2-1144.8045.02544.665SM 1/8 -44 M162.014.0014.21013.835M271.026.0026.15325.917PS 2-1156.5056.83656.476SM 9/64 -40 M182.515.5015.74415.294M282.026.0026.21025.835美 制 粗 螺 紋SM 11/64 -40 M202.517.5017.74417.294M281.526.5026.67626.376 規格(UNC)標準徑 2級牙鑽孔徑英 制 管 螺 紋SM 3/16 -32 M222.519.5019.74419.294M281.027.0027.15326.917最大最小 規 格 標準徑SM 3/16 -28 M243.021.0021.25220.752M303.027.0027.25226.752XX牙外徑 使用電刀時不用電刀時 SM 7/32 -32 M273.024.0024.25223.752M302.028.0028.21027.835NO.1-64(1.854)1.551.5821.425PS 1/16-286.106.206.2446.384SM 15/64 -28 M303.526.5026.77126.211M301.528.5028.67628.376NO.2-56(2.184)1.801.8711.695PS 1/8-288.108.208.2498.388SM 1/4 -40 M301.029.0029.15328.917NO.3-48(2.515)2.102.1461.941PS 1/4-1910.7011.00 10.96211.174SM 1/4 -28 公 制 細 螺 紋M322.030.0030.21029.835NO.4-40(2.845)2.302.3852.157PS 3/8-1914.2014.50 14.44814.658SM 9/32 -28 規 格標準徑 2級牙鑽孔徑M321.530.5030.67630.376NO.5-40(3.175)2.602.6972.487PS 1/2-1417.6018.00 17.97918.263SM 11/32 -28 最大最小M333.030.0030.25229.752NO.6-32(3.505)2.802.8952.642PS 3/4-1423.0023.50 23.37823.663SM 3/8 -28 M1.00.20.800.8210.783M332.031.0031.21030.835NO.8-32(4.166)3.403.5303.302PS 1-1129.0029.50 29.45929.822SM 7/16 -28 M1.10.20.900.9210.883M331.531.5031.67631.376NO.10-24(4.826)3.903.9623.683PS 1-1/4-1137.5038.00 37.97638.339SM 7/16 -16 M1.20.21.001.0210.983M351.533.5033.67633.376NO.12-24(5.486)4.504.5974.344PS 1-1/2-1143.4044.00 43.86944.232SM 1/2 -20 M1.40.21.201.2211.183M363.033.0033.25232.7521/4 -205.105.2574.979PS 2-1154.9055.50 55.41255.844SM 9/16 -20 M1.60.21.401.4211.383M362.034.0034.21033.8355/16 -186.606.7316.401 M1.70.21.451.5001.460M361.534.0034.67634.3763/8 -168.008.1537.798英 制 管 螺 紋公制螺紋 M1.80.21.601.6211.5837/16 -149.409.5509.144 規 格 鑽 孔 徑規 格 M2.00.251.751.7851.729美 制 細 螺 紋1/2 -1310.8011.02310.592NPT NPS M30.5 M2.20.251.951.9851.929 規格(UNF)標準徑 2級牙鑽孔徑9/16 -1212.2012.44611.989 使用絞刀時不用絞刀時 M3.00.6 M2.30.252.052.0612.001最大最小5/8 -1113.6012.86813.3861/16 -276.106.256.35M3.50.6 M2.50.352.202.2212.121XX牙外徑3/4 -1016.5018.84016.3071/8 -278.338.438.74M4.00.7 M2.60.352.202.2462.186NO.0-80(1.524)1.251.3051.1827/8 -819.5019.76119.1771/4 -1810.7211.1311.13M4.00.75 M3.00.352.702.7212.621NO.1-72(1.854)1.551.6121.4741 -822.2022.60621.9713/8 -1814.2714.2714.68M4.50.75 M3.50.353.203.2213.121NO.2-64(2.184)1.851.9121.7561-1/8 -725.0025.34924.6381/2 -1417.4817.8618.26M5.00.8 M4.00.53.503.5993.459NO.3-56(2.515)2.102.1972.0251-1/4 -728.2028.52427.8133/4 -1422.6323.0123.42M5.00.9 M4.50.54.004.0993.959NO.4-48(2.845)2.402.4582.2711-3/8 -630.8031.11530.3531 -11-1/228.5828.9829.36M6.01.0 M5.00.54.504.5994.459NO.5-44(3.175)2.702.7402.5511-1/2 -634.0034.29033.5281-1/4 -11-1/237.3137.6938.10M7.01.0 M5.50.55.005.0994.959NO.6-40(3.505)2.903.0222.8201-3/4 -539.5039.82738.9641-1/2 -11-1/243.6644.0444.45M8.01.0 M6.00.755.305.3785.188NO.8-36(4.166)3.503.6063.4042 -4-1/245.2045.59344.6792 -11-1/255.5855.9656.36M8.01.25 M6.00.55.505.5505.400NO.10-32(4.826)4.104.1653.963M9.01.25 M7.00.756.306.3786.188NO.12-28(5.846)4.604.7244.496美 制 特 細 螺 紋 英制螺絲滾造徑 M101.25 M7.00.56.506.5506.4001/4 -285.505.5885.360 規格(UNEF)標準徑 2級牙鑽孔徑M101.5 M8.01.07.007.1536.9175/16 -246.907.0356.782最大最小規 格滾 造 徑M111.5 M8.00.757.307.3787.1883/8 -248.508.6368.382NO. 12 -324.704.8264.623W 3/16 -244.08 - 4.05M121.5 M8.00.57.507.5207.4007/16 -209.9010.0339.7291/4 -325.605.6905.486W 1/4 -205.51 - 5.46M121.75 M9.01.08.008.1537.9171/2 -2011.5011.60711.3295/16 -327.107.2647.087W 5/16 -187.01 - 6.95M142.0 M9.00.758.308.3788.1889/16 -1812.9013.08112.7513/8 -328.708.8658.661W 3/8 -168.48 - 8.41M162.0 M101.258.808.9128.6475/8 -1814.5014.68114.3517/16 -2810.2010.33810.135W 7/16 -149.92 - 9.85M182.5 M101.09.009.1538.9173/4 -1617.5017.67817.3231/2 -2811.8011.93811.709W 1/2 -1211.31 - 11.24M202.5 M100.759.309.3789.1887/8 -1420.5020.67520.2709/16 -2413.2013.38613.132W 9/16 -1212.89 - 12.82M222.5 M100.59.509.5209.4001 -1223.2023.57123.1145/8 -2414.8014.98614.732 M111.010.0010.1539.9171-1/8 -1226.5026.74626.2893/4 -2017.8017.95817.678 M110.7510.3010.37810.1881-1/4 -1229.5029.92129.4647/8 -2021.0021.13320.853 M121.510.5010.67610.3761-3/8 -1232.8033.09632.6391 -2024.0024.30824.028 M121.2510.8010.91210.6471-1/2 -