细螺纹

公制细螺纹规格M1.0×0.2M1.1×0.2M1.2×0.2M1.4×0.2M1.6×0.2M1.7×0.2M1.8×0.2M2.0×0.25M2.2×0.25M2.3×0.25M2.5×0.35M2.6×0.35M3.0×0.35M3.5×0.35M4.0×0.5M4.5×0.5M5.0×0.5M5.5×0.5M6.0×0.75M6.0×0.5M7.0×0.75M7.0×0.5标准径0.800.901.001.201.401.451.601.751.952.052.202.202.703.203.504.004.505.005.305.506.306.502级牙钻孔径最大最小0.8210.7830.9211.0211.2211.4211.5001.6211.7851.9852.0612.2212.2462.7213.2213.5994.0994.5995.0995.3785.5506.3786.5500.8830.9831.1831.3831.4601.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.4006.1886.400规格（UNC）NO.0-80(1.524)NO.1-72(1.854)NO.2-64(2.184)NO.3-56(2.515)NO.4-48(2.845)NO.5-44(3.175)NO.6-40(3.505)NO.8-36(4.166)NO.10-32(4.826)NO.12-28(5.846)1/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-167/8-141-121-1/8-121-1/4-12美制细螺纹标准径1.251.551.852.102.402.702.903.504.104.605.506.908.509.9011.5012.9014.5017.5020.5023.2026.5029.502级牙钻孔径最大最小1.3051.1821.6121.9122.1972.4582.7403.0223.6064.1654.7245.5887.0358.63610.03311.60713.08114.68117.67820.67523.57126.74629.9211.4741.7562.0252.2712.5512.8203.4043.9634.4965.3606.7828.3829.72911.32912.75114.35117.32320.27023.11426.28929.464螺丝攻牙钻孔径和滚造径对照表

公制细螺纹规格M8.0×1.0M8.0×0.75M8.0×0.5M9.0×1.0M9.0×0.75M10×1.25M10×1.0M10×0.75M10×0.5M11×1.0M11×0.75M12×1.5M12×1.25M12×1.0M12×0.5M14×1.5M14×1.0M15×1.5M15×1.0M16×1.5M16×1.0M17×1.5标准径7.007.307.508.008.308.809.009.309.5010.0010.3010.5010.8011.0011.5012.5013.0013.5014.0014.5015.0015.502级牙钻孔径最大最小7.1536.9177.3787.5208.1538.3788.9129.1539.3789.52010.15310.37810.67610.91211.15311.52012.67613.15313.67614.15314.67615.15315.6767.1887.4007.9178.1888.6478.9179.1889.4009.91710.18810.37610.64710.91711.40012.37612.91713.37613.91714.37614.91715.376规格（UNC）1-3/8-121-1/2-12美制细螺纹标准径32.8036.002级牙钻孔径最大最小33.09632.63936.27135.814螺丝攻牙钻孔径和滚造径对照表

公制细螺纹规格M17×1.0M18×2.0M18×1.5M18×1.0M20×2.0M20×1.5M20×1.0M22×2.0M22×1.5M22×1.0M24×2.0M24×1.5M24×1.0M25×2.0M25×1.5M25×1.0M26×1.5M27×2.0M27×1.5M27×1.0M28×2.0M28×1.5标准径16.0016.0016.5017.0018.0018.5019.0020.0020.5021.0022.0022.5023.0023.0023.5024.0024.5025.0025.5026.0026.0026.502级牙钻孔径最大16.15316.21016.67617.15318.21018.67619.15320.21020.67621.15322.21022.67623.15323.21023.67624.15324.67625.21025.67626.15326.21026.676最小15.91715.83516.37616.91717.83518.37618.91719.83520.37620.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.376规格（UNC）美制细螺纹标准径2级牙钻孔径最大最小螺丝攻牙钻孔径和滚造径对照表

公制细螺纹规格M28×1.0M30×3.0M30×2.0M30×1.5M30×1.0M32×2.0M32×1.5M33×3.0M33×2.0M33×1.5M35×1.5M36×3.0M36×2.0M36×1.5标准径27.0027.0028.0028.5029.0030.0030.5030.0031.0031.5033.5033.0034.0034.502级牙钻孔径最大27.15327.25228.21028.67629.15330.21030.67630.25231.21031.67633.67633.25234.21034.676最小26.91726.75227.83528.37628.91729.83530.37629.75230.83531.37633.37632.75233.83534.376规格（UNC）美制细螺纹标准径2级牙钻孔径最大最小