螺丝攻牙钻孔径和滚造径对照表

公制粗螺纹规格标准径2级牙钻孔径最大0.7850.8850.9851.1421.3211.4211.5211.6791.8381.9792.1382.2382.5992.443.013.4223.3263.8784.3344.175.1536.1536.9127.9128.6769.67610.44112.2114.2115.74417.74419.74421.25224.25226.771最小0.7290.8290.9291.0751.2211.3211.4211.5671.7131.8672.0132.1132.4592.282.853.2423.1063.6884.1343.934.9175.9176.77.78.3769.37610.10611.83513.83515.29417.29419.29420.75223.75226.211规格M12×1.0M12×0.5M14×1.5M14×1.0M15×1.5M15×1.0M16×1.5M16×1.0M17×1.5M17×1.0M18×2.0M18×1.5M18×1.0M20×2.0M20×1.5M20×1.0M22×2.0M22×1.5M22×1.0M24×2.0M24×1.5M24×1.0M25×2.0M25×1.5M25×1.0M26×1.5M27×2.0M27×1.5M27×1.0M28×2.0M28×1.5M28×1.0M30×3.0M30×2.0M30×1.5M30×1.0M32×2.0M32×1.5M33×3.0M33×2.0M33×1.5M35×1.5M36×3.0M36×2.0M36×1.5公制细螺纹标准径11.0011.5012.5013.0013.5014.0014.5015.0015.5016.0016.0016.5017.0018.0018.5019.0020.0020.5021.0022.0022.5023.0023.0023.5024.0024.5025.0025.5026.0026.0026.5027.0027.0028.0028.5029.0030.0030.5030.0031.0031.5033.5033.0034.0034.502级牙钻孔径最大11.15311.52012.67613.15313.67614.15314.67615.15315.67616.15316.21016.67617.15318.21018.67619.15320.21020.67621.15322.21022.67623.15323.21023.67624.15324.67625.21025.67626.15326.21026.67627.15327.25228.21028.67629.15330.21030.67630.25231.21031.67633.67633.25234.21034.676最小10.91711.40012.37612.91713.37613.91714.37614.91715.37615.91715.83516.37616.91717.83518.37618.91719.83520.37620.91721.83522.37622.91722.83523.37623.91724.37624.83525.37625.91725.83526.37626.91726.75227.83528.37628.91729.83530.37629.75230.83531.73633.37632.75233.83534.376公制迫牙丝攻钻孔径规格M1.0×0.25M1.1×0.25M1.2×0.25M1.4×0.3M1.6×0.35M1.7×0.35M1.8×0.35M2.0×0.4M2.2×0.45M2.3×0.40M2.5×0.45M2.6×0.45M3.0×0.5M3.5×0.6M4.0×0.7M5.0×0.8M6.0×1.0M7.0×1.0M8.0×1.25M10×1.5M10×1.25M12×1.75M12×1.25精度等级G4-G60.860.961.061.241.411.511.611.781.952.082.252.352.733.173.624.565.456.457.319.1.3111.0411.31G7-G8G90.880.981.081.251.431.531.631.801.982.102.282.382.753.203.6.605.506.507.3.259.3811.1211.38——————————————3.694.5.556.557.449.329.4411.2111.44M1.0×0.250.75M1.1×0.250.85M1.2×0.250.95M1.4×0.31.10M1.6×0.351.25M1.7×0.351.35M1.8×0.351.45M2.0×0.41.60M2.2×0.451.75M2.3×0.401.90M2.5×0.452.10M2.6×0.452.20M3.0×0.5M3.0×0.6M3.5×0.6M4.0×0.72.502.402.903.30M4.0×0.753.25M4.5×0.753.80M5.0×0.8M5.0×0.9M6.0×1.0M7.0×1.04.204.105.006.00M8.0×1.256.80M9.0×1.257.80M10×1.5M11×1.5M12×1.75M14×2.0M16×2.0M18×2.5M20×2.5M22×2.5M24×3.0M27×3.0M30×3.58.509.5010.3012.0014.0015.5017.5019.5021.0024.0026.50注:迫牙丝攻之钻孔径,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，因此于参考上表之同时，亦请增减若干。美制粗螺纹规格(unc)螺丝牙外径No.1-(1.8)No.2-56(2.184)No.3-48(2.515)No.4-40(2.845)No.5-40(3.175)No.6-32(3.505)No.8-32(4.166)标准径1.551.802.102.302.602.803.402级牙钻孔径最大最小1.5821.8712.1462.3852.6972.53.5303.9624.5975.2576.7318.1531.4251.6951.9412.1572.4872.23.3023.6834.3444.9796.4017.798公制细螺纹规格M1.0×0.2M1.1×0.2M1.2×0.2M1.4×0.2M1.6×0.2标准径0.800.901.001.201.402级牙钻孔径最大最小0.8210.9211.0211.2211.4210.7830.8830.9831.1831.383No.10-24(4.826)3.90No.12-24(5.486)4.501/4-205/16-183/8-165.106.608.00M1.7×0.2M1.8×0.21.451.601.5001.6211.7851.9852.0612.2212.2462.7213.2213.5994.0994.5995.0995.3785.5506.3786.557.1537.3787.5208.1538.3788.9129.1539.37.52010.15310.37810.67610.9121.4601.5831.7291.9292.0012.1212.1862.6213.1213.4593.9594.4594.9595.1885.4006.1886.46.9177.1887.4007.9178.1888.78.9179.18.4009.91710.18810.37610.77/16-141/2-139/16-125/8-113/4-107/8-91-81-1/8-71-1/4-71-3/8-61-1/2-61-3/4-52-4-1/29.4010.8012.2013.6016.5019.5022.2025.0028.2030.8034.0039.5045.209.55011.02312.44612.86818.84019.76122.60625.34928.52431.11534.29039.82745.5939.14410.59211.913.38616.30719.17721.97124.63827.81330.35333.52838.944.679M2.0×0.251.75M2.2×0.251.95M2.3×0.252.05M2.5×0.352.20M2.6×0.352.20M3.0×0.352.70M3.5×0.353.20M4.0×0.5M4.5×0.5M5.0×0.5M5.5×0.5M6.0×0.5M7.0×0.5M8.0×1.0M8.0×0.5M9.0×1.03.504.004.505.005.506.507.007.508.00美制细螺纹规格（UNF）标准径螺丝牙外径No.0-80(1.524)1.25No.1-72(1.8)1.55No.2-(2.184)1.85No.3-56(2.515)2.10No.4-48(2.845)2.40No.5-44(3.175)2.70No.6-40(3.505)2.90No.8-36(4.166)3.50No.10-32(4.826)4.10No.12-28(5.846)4.601/4-285/16-243/8-247/16-201/2-209/16-185/8-183/4-167/8-141-121-1/8-121-1/4-121-3/8-121-1/2-125.506.908.509.9011.5012.9014.5017.5020.5023.2026.5029.5032.8036.002级牙钻孔径最大1.3051.6121.9122.1972.4582.7403.0223.60.16.7245.5887.0358.63610.03311.60713.08114.68117.67820.67523.57126.74629.92133.09636.271最小1.1821.4741.7562.0252.2712.5512.8203.4043.9634.4965.3606.7828.3829.72911.32912.75114.35117.32320.27023.11426.229.432.63935.814M6.0×0.755.30M7.0×0.756.30美制特细螺纹规格(UNEF)NO.12-321/4-325/16-323/8-327/16-281/2-2/16-245/8-243/4-207/8-201-20M8.0×0.757.30标准径4.705.607.108.7010.2011.8013.2014.8017.8021.0024.002级牙钻孔径最大4.8265.697.28.86510.33811.93813.38614.98617.95821.13324.308最小4.6235.4867.0878.66110.13511.70913.13214.73217.67820.85324.028M9.0×0.758.30M10.0×1.258.80M10×1.0M10×0.75M10×0.5M11×1.0M11×0.75M12×1.5M12×1.259.009.309.5010.0010.3010.5010.80造 径 对 照 表

美制迫牙丝攻钻孔径规格No.2-56UNCNo.3-48No.4-40No.5-40No.6-32No.8-32No.10-24No.12-241/4-205/16-183/8-167/16-161/2-13No.2-UNFNo.3-56No.4-48No.5-44No.6-40No.8-36No.10-32No.12-281/4-285/16-243/8-247/16-201/2-20英制螺纹G9——————————8.8110.3011.82———————————10.12.13精度等级G4-G61.942.232.502.833.073.734.244.90—————1.972.272.562.863.163.784.394.995.857.36———G7-G8—————3.774.304.965.727.248.7410.2011.27——————4.435.045.907.419.0010.4812.07规格W1/8-40W5/32-32W3/16-24W1/4-20W5/16-18W3/8-16W7/16-14W1/2-12W9/16-14W5/8-11W3/4-10W7/8-9W1-8W1-1/8-7W1-1/4-7钻孔径硬材2.653.253.755.106.608.009.4010.7012.3013.7016.7019.5022.4025.0028.30软材2.603.203.705.006.507.909.3010.5012.0013.5016.5019.3022.0024.8028.00针车用螺纹规格SM1/8-40SM1/8-44SM9/-40SM11/-40SM3/16-32SM3/16-28滚造径2.735-2.6882.769-2.7223.128-3.0833.855-3.80.205-4.15.143-4.0935.003-4.9555.325-5.575.0-5.7355.721-5.3666.508-6.88.092-8.4328.880-8.01510.466-10.40110.037-9.96711.819-11.74913.400-13.425英制管螺纹规格PS 1/16-28PS 1/8-28PS 1/4-19PS 3/8-19PS 1/2-14PS 3/4-14PS 1-11PS 1-1/4-11PS 1-1/2-11PS 2-11标准径6.508.5011.4015.0018.5024.0030.2038.8044.0056.50钻孔径最大6.6328.63711.915.018.77324.25930.47139.13245.02558.836SM7/32-32SM15/-28SM1/4-40SM1/4-28SM9/32-28SM11/32-28SM3/8-28SM7/16-28SM7/16-16SM1/2-20SM9/16-206.4908.495最小11.34114.84618.423.97530.11138.77244.66556.476英制管螺纹英制管螺纹规格PT 1/16-28PT 1/8-28PT 1/4-19PT 3/8-19PT 1/2-14PT 3/4-14PT 1-11PT 1-1/4-11PT 1-1/2-11PT 2-11有效牙部之长度标准长度(最小)（最小）中之毋中之毋螺牙内径螺牙内径使用纹刀时不用纹刀时标准径6.108.1010.7014.2017.6023.0029.0037.5043.40.906.208.2011.0014.5018.0023.5029.5044.0055.506.2448.24910.96214.44817.97923.37829.45943.86955.4126.3848.38811.17414.65818.26323.66329.82238.33944.23255.844公制螺丝纹

规格M3×0.5M3.0×0.6M3.5×0.6M4.0×0.7M4.0×0.75M4.5×0.75M5.0×0.8M5.0×0.9M6.0×1.0M7.0×1.0M8.0×1.0M8.0×1.25滚造径2.63-2.602.56-2.533.06-3.033.49-3.453.45-3.413.96-3.924.43-4.384.36-4.315.30-5.256.30-6.257.28-7.237.12-7.0738.0037.9美制管螺纹

钻孔径规格1/16-271/8-271/4-183/8-181/2-143/4-141-11-1/21-1/4-11-1/21-1/2-11-1/22-11-1/26.108.3310.7214.2717.4822.6328.5837.3143.6655.58NPT使用绞刀时不用绞刀时NPS6.358.7411.1314.6818.2623.4229.3638.1044.4556.366.258.4311.1314.2717.8623.0128.9837.6944.0455.96英制电器螺纹

规格2BA3BA4BA5BA6BA钻孔径4.0-4.23.0-3.22.7-2.82.4-2.5