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1、公称直径X螺距螺纹精度等级大径中径小径攻丝前钻头直径最小最大最小最大最小M3X 0.356H3.0002.8632.7732.7212.6212.65M4X 0.54.0003.7753.6753.5593.4593.50M5X 0.55.0004.7754.6754.5994.4594.50M6X 0.756.0005.6455.5135.3785.1885.20M8X 0.758.0007.6457.5137.3787.1887.20M8X 18.0007.5007.3507.1536.9177.00M10X 0.7510.0009.6459.5139.3789.1889.20M10X 1
2、10.0008.5009.3509.1538.9179.00M10X 1.2510.0009.3489.1888.9128.6478.80M12X 112.00011.51011.35011.15310.91711.00M12X 1.2512.00011.36811.18810.91210.64710.80M12X 1.512.00011.21611.02610.67610.37610.50M14X 114.00013.51013.35013.15312.91713.00M14X 1.514.00013.21613.02612.67612.37612.50M16X 116.00015.5101
3、5.35015.15314.91715.00M16 1.516.00015.21615.02614.67614.37614.50M18X 118.00017.51017.35017.15316.91717.00M18X 1.518.00017.21617.02616.67616.37616.50M18X 218.00016.91316.70116.21015.83516.00M2(X 120.00019.51019.35019.15318.91719.00M2X 1.520.00019.21619.02618.67618.37618.50M20X 220.00018.91318.70118.2
4、1017.83518.00M22X 122.00021.51021.35021.15320.91721.00M22X 1.522.00021.21621.02620.67620.37620.50M22X 222.00020.91320.70120.21019.83520.00M24X 124.00025.52023.35023.15322.91723.00M24X 1.524.00023.22623.02622.67622.37622.50M24X 224.00022.92522.70122.21021.83522.00M27X 127.00026.52026.35026.15325.91726.00M27X 1.527.00026.22626.02625.67625.37625.50M27X 227.00025.92525.70125.21024.83525.00
细牙螺纹尺寸
