螺丝攻牙钻孔径和滚丝径规格对照表

1、螺螺丝丝攻攻牙牙钻钻孔孔径径和和滚滚丝丝径径规规格格对对照照表表 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)1.81.8711.695M1.20.250.950.9850.985NO.3-48(2.515)2.12.1461.941M1.40.31.11.1421.075NO.4-40(2.845)2.32.3852.157M1.60.351.251

2、.3211.221NO.5-40(3.175)2.62.6972.487M1.70.351.351.4211.321NO.6-32(3.505)2.82.8952.642M1.80.351.451.5211.421NO8-32(4.166)3.43.533.302M2.00.41.61.6791.567NO.10-24(4.826)3.93.9623.683M2.20.451.751.8381.713NO.12-24(5.486)4.54.5974.344M2.30.41.91.9791.8672001/4/205.15.2574.979M2.50.452.12.1382.013 5/16-1

3、86.66.7316.401M2.60.452.22.2382.1132003/8/1688.1537.798M3.00.52.52.5992.459 7/16-149.49.559.144M3.00.62.42.442.282001/2/1310.811.02310.592M3.50.62.93.012.85 9/16-1212.212.44611.989M4.00.73.33.4223.2422005/8/1113.612.86813.386M4.00.753.253.3263.1062003/4/1016.518.8416.307M4.50.753.83.8783.6882007/8/9

4、19.519.76119.177M5.00.84.24.3344.134122.222.60621.971M5.00.94.14.173.93 1-1/8-72525.34924.638M6.01.055.1534.917 1-1/4-728.228.52427.813M7.01.066.1535.917 1-3/8-630.831.11530.353M8.01.256.86.9126.647 1-1/2-63434.2933.528M9.01.257.87.9127.647 1-3/4-539.539.82738.964M101.58.58.6768.376 2-4-1/245.245.59

5、344.679M111.59.59.6769.376M121.7510.310.44110.106M142.01212.2111.835M162.01414.2113.835M182.515.515.74415.294M202.517.517.74417.294M222.519.519.74419.294M243.02121.25220.752M273.02424.25223.752M303.526.526.77126.211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M1.00.20.80.8210.783NO.0-8

6、0(1.524)1.251.3051.182M1.10.20.90.9210.883NO.1-72(1.854)1.551.6121.474M1.20.211.0210.983NO.2-64(2.184)1.851.9121.756M1.40.21.21.2211.183NO.3-56(2.515)2.12.1972.025M1.60.21.41.4211.383NO.4-48(2.845)2.42.4582.271M1.70.21.451.51.46NO.5-44(3.175)2.72.742.551M1.80.21.61.6211.583NO.6-40(3.505)2.93.0222.82

7、M2.00.251.751.7851.729NO.8-36(4.166)3.53.6063.404M2.20.251.951.9851.929NO.10-32(4.826)4.14.1653.963M2.30.252.052.0612.001NO.12-28(5.846)4.64.7244.496M2.50.352.22.2212.1212001/4/285.55.5885.36M2.60.352.22.2462.186 5/16-246.97.0356.782M3.00.352.72.7212.6212003/8/248.58.6368.382M3.50.353.23.2213.121 7/

8、16-209.910.0339.729M4.00.53.53.5993.4592001/2/2011.511.60711.329M4.50.544.0993.959 9/16-1812.913.08112.751M5.00.54.54.5994.4592005/8/1814.514.68114.351M5.50.555.0994.9592003/4/1617.517.67817.323M6.00.755.35.3785.1882007/8/1420.520.67520.27M6.00.55.55.555.41月12日23.223.57123.114M7.00.756.36.3786.188 1

9、-1/8-1226.526.74626.289M7.00.56.56.556.4 1-1/4-1229.529.92129.464M8.01.077.1536.917 1-3/8-1232.833.09632.639M8.00.757.37.3787.188 1-1/2-123636.27135.814M8.00.57.57.527.4M9.01.088.1537.917M9.00.758.38.3788.188M101.258.88.9128.647M101.099.1538.917M100.759.39.3789.188M100.59.59.529.4M111.01010.1539.917

10、M110.7510.310.37810.188M121.510.510.67610.376M121.2510.810.91210.647M121.01111.15310.917M120.511.511.5211.4M141.512.512.67612.376M141.01313.15312.917M151.513.513.67613.376M151.01414.15313.917M161.514.514.67614.376M161.01515.15314.917M171.515.515.67615.376M171.01616.15315.917M182.01616.2115.835M181.5

11、16.516.67616.376M181.01717.15316.917M202.01818.2117.835M201.518.518.67618.376M201.01919.15318.917M222.02020.2119.835M221.520.520.67620.376M221.02121.15320.917M242.02222.2121.835M241.522.522.67622.376M241.02323.15322.917M252.02323.2122.835M251.523.523.67623.376M251.02424.15323.917M261.524.524.67624.3

12、76M272.02525.2124.835M271.525.525.67625.376M271.02626.15325.917M282.02626.2125.835M281.526.526.67626.376M281.02727.15326.917M303.02727.25226.752M302.02828.2127.835M301.528.528.67628.376M301.02929.15328.917M322.03030.2129.835M321.530.530.67630.376M333.03030.25229.752M332.03131.2130.835M331.531.531.67

13、631.376M351.533.533.67633.376M363.03333.25232.752M362.03434.2133.835M361.534.534.67634.376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-G8G9M1.00.250.860.88 NO.2-56UNC1.94 M1.10.250.960.98 NO.3-482.23 M1.20.251.061.08 NO.4-402.5 M1.40.31.241.25 NO.5-402.83 M1.60.351.411.43 NO.

14、6-323.07 M1.70.351.511.53 NO.8-323.733.77 M1.80.351.611.63 NO.10-244.244.3 M2.00.41.781.8 NO.12-244.94.96 M2.20.451.951.98 2001/4/20 5.72 M2.30.42.082.1 5/16-187.24 M2.50.452.252.28 2003/8/16 8.748.81M2.60.452.352.38 7/16-1410.210.3M3.00.52.732.75 2001/2/13 11.2711.82M3.50.63.173.2 NO.2-64UNF1.97 M4

15、.00.73.623.653.69 NO.3-562.27 M5.00.84.564.64.64 NO.4-482.56 M6.01.05.455.55.55 NO.5-442.86 M7.01.06.456.56.55 NO.6-403.16 M8.01.257.317.387.44 NO.8-363.78 M101.59.189.259.32 NO.10-324.394.43 M101.259.319.389.44 NO.12-284.995.04 M121.7511.0411.1211.212001/4/285.855.9 M121.2511.3111.3811.44 5/16-247.

16、367.41 2003/8/24 9 7/16-2010.4810.542001/2/20 12.0712.13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.12-324.74.8264.623 2BA4.0-4.21/4 -325.65.695.486 3BA5/16 -327.17.2647.087 4BA3.0-3.23/8 -328.78.8658.661 5BA2.7-2.87/16 -2810.210.33810.135 6BA2.4-2.52001/2/2811.811.93811.7099/16 -2413.213.38613.1322005/8/241

17、4.814.98614.7322003/4/2017.817.95817.6782007/8/202121.13320.8531月20日2424.30824.028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 - 402.652.6 M30.52.63-2.60SM1/8-402.735-2.688W 5/32 - 323.253.2 M3.00.62.56-2.53SM1/8-442.769-2.722W 3/16 - 243.753.7 M3.50.63.06-3.03SM9/64-403.128-3.083W 1/4

18、- 205.15 M4.00.73.49-3.45SM11/64-403.855-3.805W 5/16 - 186.66.5 M4.00.753.45-3.41SM3/16-324.205-4.155W 3/8 - 1687.9 M4.50.753.96-3.92SM3/16-284.143-4.093W 7/16 - 149.49.3 M5.00.84.43-4.38SM7/32-325.003-4.955W 1/2 - 1210.710.5 M5.00.94.36-4.31SM15/64-285.325-5.570W 9/16 - 1212.312 M6.01.05.30-5.25SM1

19、/4-405.890-5.735W 5/8 - 1113.713.5 M7.01.06.30-6.25SM1/4-285.721-5.366W 3/4 - 1016.716.5 M8.01.07.28-7.23SM9/32-286.508-6.648W 7/8 - 919.519.3 M8.01.257.12-7.07SM11/32-288.092-8.432W1 - 822.422SM3/8-288.880-8.015W 1-1/8 - 72524.8SM7/16-2810.466-10.401W 1 - 1/4 - 728.328SM7/16-1610.037-9.967SM1/2-201

20、1.819-11.749SM9/26-2013.400-13.425螺螺丝丝攻攻牙牙钻钻孔孔径径和和滚滚丝丝径径规规格格对对照照表表(2)(2) 英制管螺纹英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）中之毋螺牙内径最大最小使用绞刀时 不用绞刀时PS 1/16 - 286.56.6326.49 PT 1/16 - 286.16.26.2446.384PS 1/8 - 288.58.6378.495 PT 1/8 - 288.18.28.2498.388PS 1/4 - 1911.411.54911.341 PT 1/4 - 1910.71110.96211.174PS 3/8 - 191515.05414.846 PT 3/8