史上最全中美英螺纹规格表、攻牙钻孔径对照表 (大全).pdf

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1、史上最全“中/美/英”螺纹规格表、攻牙钻孔径对照表美制螺纹滚造径规格钻孔径NPTNPS使用绞刀时不用绞刀时1/16-276.16.256.351/8-278.338.438.741/4-1810.7211.1311.133/8-1814.2714.2714.681/2-1417.4817.8618.263/4-1422.6323.0123.421-11-1/228.5828.9829.361-1/4-11-1/237.3137.6938.11-1/2-11-1/243.6644.0444.452-11-1/255.5855.9656.36英制螺

2、纹滚造径规格滚造径W3/16-244.08-4.05W1/4-205.51-5.46W5/16-187.01-6.95W3/8-168.48-8.41W7/16-149.92-9.85W1/2-1211.31-11.24W9/16-1212.89-12.82公制无屑丝攻钻孔径规格精度等级RH4.5.6RH7.8RH9M1.0×0.250.860.88-M1.1×0.250.960.98-M1.2×0.251.061.08-M1.4×0.31.241.25-M1.6×0.351.411.43-M1.7×0.351.511.53-M1.8×0.35

3、1.611.63-M2.0×0.41.781.80-M2.2×0.451.951.98-M2.3×0.42.082.10-M2.5×0.452.252.28-M2.6×0.452.351.38-M3.0×0.52.732.75-M3.0×0.63.173.20-M4.0×0.73.623.653.69M5.0×0.84.564.604.64M6.0×1.05.455.505.55M7.0×1.06.456.506.55M8.0×1.257.317.387.44M10×1.59.189.259.32M10×1.259.319.389.44M12×

4、1.7511.0411.1211.21M12×1.2511.3111.3811.44注：无槽丝攻之钻孔径,在上表所列之数值,由于被加工材料之材质、硬度、形状、尺寸等之影响,多少会有所变动，因此参考上表之同时,亦请增减若干。