螺丝攻牙钻孔径对照表.xls

1、螺螺 丝丝 攻攻 牙牙 钻钻 孔孔 径径 对对 照照 表表 公公 制制 粗粗 螺螺 纹纹公公 制制 细细 螺螺 纹纹 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小最最大大最最小小 M1.00.250.750.7850.729M1.00.20.800.8210.783 M1.10.250.850.8850.829M1.10.20.900.9210.883 M1.20.250.950.9850.929M1.20.21.001.0210.983 M1.40.31.101.1421.075M1.40.21.201.2211.183

2、 M1.60.351.251.3211.221M1.60.21.401.4211.383 M1.70.351.351.4211.321M1.70.21.501.5211.483 M1.80.351.451.5211.421M1.80.21.601.6211.583 M2.00.41.601.6791.576M2.00.251.751.7851.729 M2.20.451.751.8381.713M2.20.251.951.9851.929 M2.30.41.901.9791.867M2.30.252.052.0852.029 M2.50.452.102.1382.013M2.50.352.20

3、2.2212.121 M2.60.452.202.2382.113M2.60.352.202.3212.221 M3.00.52.502.5992.459M3.00.352.702.7212.621 M3.50.62.903.0102.850M3.50.353.203.2213.121 M4.00.73.303.4223.242M4.00.53.503.5993.459 M4.50.753.803.8783.688M4.50.54.004.0993.959 M5.00.84.204.3344.134M5.00.54.504.5994.459 M6.01.05.005.1534.917M5.50

4、.55.005.0994.959 M7.01.06.006.1535.917M6.00.755.305.3785.188 M8.01.256.806.9126.647M6.00.55.505.5995.459 M9.01.257.807.9127.647M7.00.756.306.3786.188 M101.58.508.6768.376M7.00.56.506.5996.459 M111.59.509.6769.376M8.01.07.007.1536.917 M121.7510.3010.44110.106M8.00.757.307.3787.188 M142.012.0012.21011

5、.835M8.00.57.507.5997.459 M162.014.0014.21013.835M9.01.08.008.1537.917 M182.515.5015.74415.294 M9.00.758.308.3788.188 M202.517.5017.74417.294M101.258.808.9128.647 M222.519.5019.74419.294M101.09.009.1538.917 M243.021.0021.25220.752M100.759.309.3789.188 M273.024.0024.25223.752M100.59.509.5999.459 M303

6、.526.5026.77126.211M111.010.0010.1539.917 M333.529.5029.77129.211M110.7510.3010.37810.188 M364.032.0032.27031.670M121.510.5010.67610.376 M394.035.0035.27034.670M121.2510.8010.91210.647 公公 制制 细细 螺螺 纹纹美美 制制 细细 螺螺 纹纹 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径 规规 格格 (UNC) 标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小最最大大最最小小 M121.011.001

7、1.15310.917 （番数牙外径） M120.511.5011.59911.459NO. 1-64 (1.854)1.551.5821.425 M141.512.5012.67612.376NO. 2-56 (2.184)1.801.8711.695 M141.013.0013.15312.917NO. 3-48 (2.515)2.102.1461.941 M151.513.5013.67613.376NO. 4-40 (2.845)2.302.3852.157 M151.014.0014.15313.917NO. 5-40 (3.175)2.602.6972.487 M161.514.5

8、014.67614.376NO. 6-32(3.505)2.802.8952.642 M161.015.0015.15314.917NO. 8-32 (4.166)3.403.5303.302 M171.515.5015.67615.376NO.10-24 (4.826)3.903.9623.683 M171.016.0016.15315.917NO.12-24(5.486)4.504.5974.344 M182.016.0016.21015.835 1/4 - 205.105.2574.979 M181.516.5016.67616.376 5/16 - 186.606.7316.401 M

9、181.017.0017.15316.917 3/8 - 168.008.1537.798 M202.018.0018.21017.835 7/16 - 149.409.5509.144 M201.518.5018.67618.376 1/2 - 1310.9011.02310.592 M201.019.0019.15318.917 9/16 - 1212.2012.44611.989 M222.020.0020.21019.835 5/8 - 1113.6013.86813.386 M221.520.5020.67620.376 3/4 - 1016.6016.84016.307 M221.

10、021.0021.15320.9177/8 - 919.6019.76119.177 M242.022.0022.21021.8351 - 822.3022.60621.971 M241.522.5022.67622.3761-1/8 - 725.0025.34924.638 M241.023.0023.15322.9171-1/4 - 728.2028.52427.813 M252.023.0023.21022.8351-3/8 - 630.8031.11530.353 M251.523.5023.67623.3761-1/2 - 634.0034.29033.528 M251.024.00

11、24.15323.9171-3/4 - 539.5039.82738.964 M261.524.5024.67624.376 2 -4-1/245.2045.59344.679 M272.025.0025.21024.835 M271.525.5025.67625.376 M271.026.0026.15325.917 M282.026.0026.21025.835 M281.526.5026.67626.376 美美 制制 特特 细细 螺螺 纹纹 M281.027.0027.15326.917 M303.027.0027.25226.752规规格格 (UNEF) 标标准准径径 2 级级牙牙钻

12、钻孔孔径径 M302.028.0028.21027.835最最大大最最小小 M301.528.5028.67628.376No.12 -324.704.8264.623 M301.029.0029.15328.9171/4 -325.605.6895.487 M322.030.0030.21029.8355/16 -327.107.2647.087 M321.530.5030.67630.3763/8 -328.708.8648.662 M333.030.0030.25229.7527/16 -2810.2010.33710.135 M332.031.0031.21030.8351/2 -28

13、11.8011.93811.710 M331.531.5031.67631.3769/16 -2413.2013.38513.132 M351.533.5033.67633.3765/8 -2414.8014.96814.732 M363.033.0033.25232.7523/4 -2017.8017.95717.679 M362.034.0034.21033.8357/8 -2021.0021.13220.854 M361.534.5034.67634.3761 -2024.1024.30724.029 英英 制制 管管 螺螺 纹纹美美 制制 粗粗 螺螺 纹纹 PS规规格格 ( 新新规规格

14、格Rp) 标标准准径径最最大大最最小小 规规 格格 (UNC) 标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小 规规 格格标标准准径径 规规 格格 (UNC) 标标准准径径 1/10 - 286.506.6326.490 （螺丝牙外径） 1/8 - 288.508.6378.495NO.1 - 64 (1.854)1.551.5821.425 1/4 - 1911.4011.54911.341NO.2 - 56 (2.184)1.801.8711.695 3/8 - 1914.9015.05414.846NO.3 - 48 (2.515)2.102.1461.941 1/2 - 14

15、18.6018.77318.489NO.4 - 40 (2.845)2.302.3852.157 3/4 - 1424.0024.25923.975NO.5 - 40 (3.175)2.602.6972.487 1 - 1130.2030.47230.111NO.6 - 32 (3.505)2.802.8952.642 1-1/4 - 1138.8039.13338.771NO.8 - 32 (4.166)3.403.5303.302 1-1/2 - 1144.7045.02644.664NO.10 - 24(4.826)3.903.9623.683 2 - 1156.5056.83756.4

16、75NO.12 - 24(5.486)4.504.5974.344 1/4 - 205.105.2574.979 英英 制制 管管 螺螺 纹纹 5/16 - 186.606.7316.401 PF规规格格 ( 新新规规格格G) 标标准准径径最最大大最最小小 3/8 - 168.008.1537.798 7/16 - 149.409.5509.144 1/16 - 286.706.8436.561 1/2 - 1310.9011.02310.592 1/8 - 288.708.8488.566 9/16 - 1212.2012.44611.989 1/4 - 1911.7011.8911.445

17、 5/8 - 1113.6013.86813.386 3/8 - 1915.2015.39514.950 3/4 - 1016.6016.84016.307 1/2 - 1419.0019.17218.631 7/8 - 919.6019.76119.177 5/8 - 1421.0021.12820.587 1 - 822.3022.60621.971 3/8 - 1424.5024.65824.117 1-1/8 - 725.0025.34924.638 7/8 - 1428.2028.41827.877 1-1/4 - 728.2028.52427.813 1 - 1130.6030.9

18、3130.291 1-3/8 - 630.8031.11530.353 1-1/8 - 1135.2035.57934.939 1-1/2 - 634.0034.29033.528 1-1/4 - 1139.2039.59238.952 1-3/4 - 539.5039.82738.964 1-1/2 - 1145.0045.48544.845 2 -4-1/245.2045.59344.679 1-3/4 - 1151.0051.42850.788 2 - 1157.0057.29656.656 英英 制制 管管 螺螺 纹纹 PT规规格格 ( 新新规规格格RC) 标标 准准 径径 有有效效牙

19、牙部部之之长长 度度（最最小小）中中 之之毋毋螺螺牙牙径径 标标准准长长度度 （最最小小）中中 之之毋毋螺螺牙牙径径 使使用用绞绞刀刀时时 不不用用绞绞刀刀时时 1/16 - 286.106.206.2446.384 1/8 - 288.108.208.2498.388 1/4 - 1910.7011.0010.96211.174 3/8 - 1914.2014.5014.44814.658 1/2 - 1417.6018.0017.97918.263 3/4 - 1423.0023.5023.37823.663 1 - 1129.0029.5029.45929.822 1-1/4 - 113

20、7.5038.0037.97638.339 1-1/2 - 1143.4044.0043.86944.232 2 - 1154.9055.5055.41255.844 美美 制制 管管 螺螺 纹纹针针 车车 用用 螺螺 纹纹 规规 格格 钻钻 孔孔 径径规规格格标标准准径径最最大大最最小小 N P T N P S SM1/16 - 801.251.2811.211 使使用用绞绞刀刀时时 不不用用绞绞刀刀时时SM5/64 - 641.551.5931.513 1/16 - 275.946.156.35SM3/32 - 561.901.9361.841 1/8 - 278.338.438.74SM

21、3/32 -1002.102.1562.081 1/4 - 1810.7211.1311.13SM1/8 - 322.302.3932.233 3/8 - 1814.2714.2714.68SM1/8 - 402.502.5512.421 1/2 - 1417.4817.8618.26SM1/8 - 442.502.6052.485 3/4 -1422.6323.0123.42SM1/8 - 482.602.6572.547 1 - 11-1/228.5828.9829.36SM9/64 - 322.702.792.630 1-1/4 - 11-1/2 37.3137.6938.10SM9/6

22、4 - 402.902.9482.818 1-1/2 -11-1/243.2643.6644.45 SM11/64 -323.503.5843.424 2 -11-1/255.1755.5856.36 SM11/64 -403.703.7423.612 SM3/16 - 243.603.6583.498 英英 制制 螺螺 纹纹 SM3/16 - 283.803.8443.684 规规 格格钻钻 孔孔 径径SM3/16 - 323.903.983.820 硬硬材材软软材材SM3/16 - 404.054.1384.008 W 1/8 - 402.652.60SM7/32 - 324.704.77

23、44.614 W 5/32 - 323.253.20SM15/64 -285.005.0554.875 W 3/16 - 243.753.70SM1/4 - 245.205.2665.086 W 1/4 - 205.105.00SM1/4 - 285.405.4525.272 W 5/16 - 186.606.50SM1/4 - 405.605.7265.596 W 3/8 - 168.007.90SM9/32 - 205.705.8245.634 W 7/16 - 149.409.30SM9/32 - 286.206.2566.066 W 1/2 - 1210.7010.50SM5/16 -

24、 186.306.4446.254 W 9/16 - 1212.3012.00SM5/16 - 246.806.8646.674 W 5/8 - 1113.7013.50SM5/16 - 286.907.056.860 W 3/4 - 1016.7016.50SM11/32 -287.707.8437.653 W 7/8 - 919.5019.30SM3/8 - 187.908.0537.843 W 1 - 822.4022.00SM3/8 - 288.508.6378.447 W1-1/8 - 725.0024.00SM7/16 - 169.309.449.220 W1-1/4 - 728.

25、3028.00SM7/16 - 2810.1010.22410.034 W 5/16 - 186.606.50SM1/2 - 1210.3010.4210.180 W 3/8 - 168.007.90SM1/2 - 2011.3011.4111.190 W 7/16 - 149.409.30SM1/2 - 2811.7011.81211.622 W 1/2 - 1210.7010.50SM9/16 - 2012.9013.01812.778 W 9/16 - 1212.3012.00 W 5/8 - 1113.7013.50 W 3/4 - 1016.7016.50 W 7/8 - 919.5

26、019.30 W 1 - 822.4022.00 W1-1/8 - 725.0024.00 W1-1/4 - 728.3028.00 公公制制迫迫牙牙丝丝攻攻钻钻孔孔径径美美制制迫迫牙牙丝丝攻攻钻钻孔孔径径 规规格格精精度度最最大大最最小小规规格格精精度度最最大大最最小小 M1.00.25G40.920.89 1 -64UNCG51.761.68 M1.20.25G41.121.09 2 -56G42.041.96 M1.40.30G41.31.26 3 -48G42.352.25 规规 格格 N P S M1.60.35G41.471.42 4 -40G52.642.54 M1.70.35G

27、41.571.52 5 -40G52.972.87 M1.80.35G41.671.62 6 -32G53.223.11 M2.00.40G41.841.79 8 -32G63.893.78 M2.20.45G52.041.97 10 -24G64.444.3 M2.30.40G42.142.09 12 -24G65.074.96 M2.50.45G52.342.27 1/4 -20G75.865.73 M2.60.45G52.442.37 5/16 -18G77.387.23 M3.00.50G52.822.75 3/8 -16G78.898.72 M3.50.60G53.273.19 7/

28、16 -14G810.410.02 M4.00.70G63.723.65 1/2 -13G811.9211.7 M5.00.80G64.674.59 0 -80UNCG51.451.39 M6.01.0G75.595.49 1 -72G51.7711.7 M7.01.0G76.596.49 2 -64G42.061.98 M8.01.25G77.497.36 3 -56G42.372.29 M101.50G79.349.22 4 -48G52.682.59 M101.25G79.499.35 5 -44G52.992.9 M121.75G811.2311.09 6 -40G53.293.19

29、M121.25G911.511.36 8 -36G53.913.81 10 -32G64.534.44 英英 制制 电电 器器 螺螺 纹纹 12 -28G65.135.03 规规格格钻钻孔孔径径 1/4 -28G765.91 2BA4.0-4.2 5/16 -24G77.537.42 3BA3.4-3.6 3/8 -24G79.18.99 4BA3.0-3.2 7/16 -20G810.6210.48 5BA2.7-2.8 1/2 -20G812.212.06 6BA2.4-2.5 螺螺 丝丝 攻攻 牙牙 钻钻 孔孔 径径 和和 滚滚 造造 径径 对对 照照 表表 公公 制制 粗粗 螺螺 纹纹

30、公公 制制 细细 螺螺 纹纹 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小最最大大最最小小 M1.00.250.750.7850.729M1.00.20.800.8210.783 M1.10.250.850.8850.829M1.10.20.900.9210.883 M1.20.250.950.9850.929M1.20.21.001.0210.983 M1.40.31.101.1421.075M1.40.21.201.2211.183 M1.60.351.251.3211.221M1.60.21.401.4211.383

31、 M1.70.351.351.4211.321M1.70.21.451.5001.460 M1.80.351.451.5211.421M1.80.21.601.6211.583 M2.00.41.601.6791.567M2.00.251.751.7851.729 M2.20.451.751.8381.713M2.20.251.951.9851.929 M2.30.41.901.9791.867M2.30.252.052.0612.001 M2.50.452.102.1382.013M2.50.352.202.2212.121 M2.60.452.202.2382.113M2.60.352.2

32、02.2462.186 M3.00.52.502.5992.459M3.00.352.702.7212.621 M3.00.62.402.4402.280M3.50.353.203.2213.121 M3.50.62.903.0102.850M4.00.53.503.5993.459 M4.00.73.303.4223.242M4.50.54.004.0993.959 M4.00.753.253.3263.106M5.00.54.504.5994.459 M4.50.753.803.8783.688M5.50.55.005.0994.959 M5.00.84.204.3344.134M6.00

33、.755.305.3785.188 M5.00.94.104.1703.930M6.00.55.505.5505.400 M6.01.05.005.1534.917M7.00.756.306.3786.188 M7.01.06.006.1535.917M7.00.56.506.5506.400 M8.01.256.806.9126.647M8.01.07.007.1536.917 M9.01.257.807.9127.647M8.00.757.307.3787.188 M101.58.508.6768.376M8.00.57.507.5207.400 M111.59.509.6769.376M

34、9.01.08.008.1537.917 M121.7510.3010.44110.106 M9.00.758.308.3788.188 M142.012.0012.21011.835M101.258.808.9128.647 M162.014.0014.21013.835M101.09.009.1538.917 M182.515.5015.74415.294M100.759.309.3789.188 M202.517.5017.74417.294M100.59.509.5209.400 M222.519.5019.74419.294M111.010.0010.1539.917 M243.02

35、1.0021.25220.752M110.7510.3010.37810.188 M273.024.0024.25223.752M121.510.5010.67610.376 M303.526.5026.77126.211M121.2510.8010.91210.647 公公 制制 细细 螺螺 纹纹美美 制制 细细 螺螺 纹纹 规规 格格标标准准径径 2 级级牙牙钻钻孔孔径径规规 格格 (UNF) 标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小最最大大最最小小 M121.011.0011.15310.917 （番数牙外径） M120.511.5011.52011.400NO. 0.8

36、0 (1.524)1.251.3051.182 M141.512.5012.67612.376NO. 1-72 (1.854)1.551.6121.474 M141.013.0013.15312.917NO. 2-64 (2.184)1.851.9121.756 M151.513.5013.67613.376NO. 3-56 (2.515)2.102.1972.025 M151.014.0014.15313.917NO. 4-48 (2.845)2.402.4582.271 M161.514.5014.67614.376NO. 5-44 (3.175)2.702.7402.551 M161.0

37、15.0015.15314.917NO. 6-40(3.505)2.903.0222.820 M171.515.5015.67615.376NO. 8-36 (4.166)3.503.6063.404 M171.016.0016.15315.917NO.10-32 (4.826)4.104.1653.963 M182.016.0016.21015.835NO.12-28(5.846)4.604.7244.496 M181.516.5016.67616.376 1/4 - 285.505.5885.360 M181.017.0017.15316.917 5/16 - 246.907.0356.7

38、82 M202.018.0018.21017.835 3/8 - 248.508.6368.382 M201.518.5018.67618.376 7/16 - 209.9010.0339.729 M201.019.0019.15318.917 1/2 - 2011.5011.60711.329 M222.020.0020.21019.835 9/16 - 1812.9013.08112.751 M221.520.5020.67620.376 5/8 - 1814.5014.68114.351 M221.021.0021.15320.917 3/4 - 1617.5017.67817.323

39、M242.022.0022.21021.835 7/8 - 1420.5020.67520.270 M241.522.5022.67622.376 1 - 1223.2023.57123.114 M241.023.0023.15322.917 1-1/8 - 1226.5026.74626.289 M252.023.0023.21022.835 1-1/4 - 1229.5029.92129.464 M251.523.5023.67623.376 1-3/8 - 1232.8033.09632.639 M251.024.0024.15323.917 1-1/2 - 1236.0036.2713

40、5.814 M261.524.5024.67624.376 M272.025.0025.21024.835 M271.525.5025.67625.376 M271.026.0026.15325.917 M282.026.0026.21025.835 美美 制制 特特 细细 螺螺 纹纹 M281.526.5026.67626.376 M281.027.0027.15326.917 M303.027.0027.25226.752 规规格格 (UNEF) 标标准准径径 2 级级牙牙钻钻孔孔径径 M302.028.0028.21027.835 最最大大最最小小 M301.528.5028.67628

41、.376No.12 -324.704.8264.623 M301.029.0029.15328.9171/4 -325.605.6905.486 M322.030.0030.21029.8355/16 -327.107.2647.087 M321.530.5030.67630.3763/8 -328.708.8658.661 M333.030.0030.25229.7527/16 -2810.2010.33810.135 M332.031.0031.21030.8351/2 -2811.8011.93811.709 M331.531.5031.67631.3769/16 -2413.2013.

42、38613.132 M351.533.5033.67633.3765/8 -2414.8014.98614.732 M363.033.0033.25232.7523/4 -2017.8017.95817.678 M362.034.0034.21033.8357/8 -2021.0021.13320.853 M361.534.5034.67634.3761 -2024.0024.30824.028 英英 制制 管管 螺螺 纹纹美美 制制 粗粗 螺螺 纹纹 规规 格格标标准准径径 钻钻 孔孔 径径规规 格格 (UNC) 标标准准径径 2 级级牙牙钻钻孔孔径径 最最大大最最小小最最大大最最小小 PS

43、 1/10 - 286.506.6326.490 （番数牙外径） PS 1/8 - 298.508.6378.495NO. 1 - 64 (1.854)1.551.5821.425 PS 1/4 - 1911.4011.549 11.341NO.2 - 56 (2.184)1.801.8711.695 PS 3/8 - 1915.0015.054 14.846NO.3 - 48 (2.515)2.102.1461.941 PS 1/2 - 1418.5018.773 18.489NO. 4 - 40 (2.845)2.302.3852.157 PS 3/4 - 1424.0024.259 23

44、.975NO.5 - 40 (3.175)2.602.6972.487 PS 1 - 1130.2030.471 30.111NO. 6 - 32 (3.505)2.802.8952.642 PS 1-1/4 - 1138.8039.132 38.772NO. 8 - 32(4.166)3.403.5303.302 PS 1-1/2 - 1144.8045.025 44.665NO.10 - 24 (4.826)3.903.9623.683 PS 2 - 1156.5056.836 56.476NO.12 - 24 (5.486)4.504.5974.344 1/4 - 205.105.257

45、4.979 5/16 - 186.606.7316.401 美美 制制 管管 螺螺 纹纹 3/8 - 168.008.1537.798 规规 格格 钻钻 孔孔 径径 7/16 - 149.409.5509.144 N P T N P S 1/2 - 1310.8011.02310.592 使使用用绞绞刀刀时时 不不用用绞绞刀刀时时 9/16 - 1212.2012.44611.989 1/16 - 276.106.256.35 5/8 - 1113.6012.86813.386 1/8 - 278.338.438.74 3/4 - 1016.5018.84016.307 1/4 - 1810.

46、7211.1311.13 7/8 - 919.5019.76119.177 3/8 - 1814.2714.2714.68 1 - 822.2022.60621.971 1/2 - 1417.4817.8618.26 1-1/8 - 825.0025.34924.638 3/4 -1422.6323.0123.42 1-1/4 - 728.2028.52427.813 1 - 11-1/2 28.5828.9829.36 1-3/8 - 6 30.8031.11530.353 1-1/4 - 11-1/237.3137.6938.10 1-1/2 - 6 34.0034.29033.528 1

47、-1/2 -11-1/243.6644.0444.45 1-3/4 - 539.5039.82738.964 2 -11-1/255.5855.9656.36 2 - 4 -1/245.2045.59344.679 英英 制制 管管 螺螺 纹纹 规规 格格 标标 准准 径径 有有效效牙牙部部之之长长 度度（最最小小）中中 之之毋毋螺螺牙牙径径 标标准准长长度度 （最最小小）中中 之之毋毋螺螺牙牙径径使使用用绞绞刀刀时时 不不用用绞绞刀刀时时 PT 1/16 - 286.106.206.2446.384 PT 1/8 - 288.108.208.2498.388 PT 1/4 - 1910.70

48、11.0010.96211.174 PT 3/8 - 1914.2014.5014.44814.658 PT 1/2 - 1417.6018.0017.97918.263 PT 3/4 - 1423.0023.5023.37823.663 PT 1 - 1129.0029.5029.45929.822 PT 1-1/4 - 1137.5038.0037.97638.339 PT 1-1/2 - 1143.4044.0043.86944.232 PT 2 - 1154.9055.5055.41255.844 无无 沟沟 丝丝 攻攻 钻钻 孔孔 径径无无 沟沟 丝丝 攻攻 钻钻 孔孔 径径 规规

49、格格 精精 度度 等等 级级 规规 格格 精精 度度 等等 级级 G4-G6G7-G8G9G4-G6G7-G8G9 M1.00.250.860.88-NO. 2 - 56UNC1.94- M1.10.250.960.98- NO. 3 - 482.23- M1.20.251.061.08- NO. 4 - 402.50- M1.40.31.241.25- NO. 5 - 402.83- M1.60.351.411.43- NO. 6 - 323.07- M1.70.351.511.53- NO. 8 - 323.733.77- M1.80.351.611.63- NO.10- 244.244.

50、30- M2.00.41.781.80- NO.12- 244.904.96- M2.20.451.951.98- 1/4 -20-5.72- M2.30.42.082.10- 5/16 -18-7.24- M2.50.452.252.28- 3/8 -16-8.748.81 M2.60.452.352.38- 7/16 -14-10.2010.30 M3.00.52.732.75- 1/2 -13-11.2711.82 M3.50.63.173.20-NO. 2 - 64UNF1.97- M4.00.73.623.653.69 NO. 3 - 562.27- M5.00.84.564.604

51、.64 NO. 4 - 482.56- M6.01.05.455.505.55 NO. 5 - 442.86- M7.01.06.456.506.55 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- M121.7511.0411.1211.21 1/4 -285.855.90- M121.2511.3111.3811.44 5/16 -247.367.41- 注： 无槽沟丝攻之钻孔径，在上表所 3/8 -24-9.00- 列之数值，由于被加工材料之材 7/16 -20-10.4810.54 质、硬度、形状