螺丝攻牙钻孔径和滚造径对照表.doc

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1、螺丝攻牙钻孔径和滚造径对照表公制粗螺纹美制细螺纹规格标准径2级牙钻孔径规格标准径2级牙钻孔径规格（UNF)标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小最大最小最大最小M1.0*0.250.750.7850.729M5.0*0.84.204.3344.134(螺丝牙外径）M1.1*0.250.850.8850.829M6.0*1.05.005.1534.917No.0-80(1.524)1.251.3051.1823/8-248.508.6368.382M1.2*0.250.950.9850.929M7.0*1.06.006.1535.

2、917No.1-72(1.854)1.551.6121.4747/16-209.9010.0339.729M1.4*0.31.101.1421.075M8.0*1.256.806.9126.647No.2-64(2.184)1.851.9121.7561/2-2011.5011.60711.329M1.6*0.351.251.3211.221M9.0*1.257.807.9127.647No.3-56(2.515)2.102.1972.0259/16-1812.9013.08112.751M1.7*0.351.351.4211.321M10*1.

3、58.508.6768.376No.4-48(2.845)2.402.4582.2715/8-1814.5014.68114.351M1.8*0.351.451.5211.421M11*1.59.509.6769.376No.5-44(3.175)2.702.7402.5513/4-1617.5017.67817.323M2.0*0.41.601.6791.567M12*1.7510.3010.44110.106No.6-40(3.505)2.903.0222.8207/8-1420.5020.67520.270M2.2*0.451.751.83

4、81.713M14*2.012.0012.21011.835No.8-36(4.166)3.503.6063.4041-1223.2023.57123.114M2.3*0.41.901.9791.867M16*2.014.0014.21013.835No.10-32(4.826)4.104.1653.9631-1/8-1226.5026.74626.289M2.5*0.452.102.1382.013M18*2.515.5015.74415.294No.12-28(5.846)4.604.7244.4961-1/4-1229.5029.92129

5、.464M2.6*0.452.202.2382.113M20*2.517.5017.74415.2941/4-285.505.5885.3601-3/8-1232.8033.09632.639M3.0*0.52.502.5992.459M22*2.519.5019.74419.2945/16-246.907.0356.7821-1/2-1236.0036.27135.814M3.5*0.62.903.0102.850M24*3.021.0021.25220.752M4.0*0.73.303.4223.242M27*3.024.0024.25223

6、.7527M4.5*0.753.803.8783.688M30*3.526.5026.77126.211公制细螺纹美制粗螺纹规格标准径2级牙钻孔径规格标准径2级牙钻孔径规格（UNF)标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小最大最小最大最小M1.0*0.20.800.8210.783M15*1.014.0014.15313.917(螺丝牙外径）M1.1*0.20.900.9210.883M16*1.514.5014.67614.376No.1-64(1.854)1.551.5821.4251/2-1310.8011.02310.59

7、2M1.2*0.21.001.0210.983M16*1.015.0015.15314.917No.2-56(2.184)1.801.8711.6959/16-1212.2012.44611.989M1.4*0.21.201.2211.183M17*1.515.5015.67615.376No.3-48(2.515)2.102.1461.9415/8-1113.6012.86813.386M1.6*0.21.401.4211.383M17*1.016.0016.15315.917No.4-40(2.845)2.302.3852.1573/4-10

8、16.5018.8416.307M1.7*0.21.451.5001.460M18*2.016.0016.21015.835No.5-4