公制(米制)螺纹极限尺寸

内螺纹 外螺纹 极限尺寸

毛坯极限尺寸参考大径尺寸（非挤压加工）；螺纹山角度：60°公称直径 d

11.11.21.41.61.822.22.533.544.555.567

螺距 P

dmax

0.20.250.20.250.20.250.20.30.20.350.20.350.250.40.250.450.350.450.350.50.350.60.50.70.50.750.50.80.5(细牙）0.75

10.7510.75

0.98311.0831.11.1831.21.3831.41.5831.5811.7831.7811.9821.9812.1822.182.4812.482.9812.983.4813.4793.983.9784.4484.4784.984.9765.485.9785.9746.9786.9747.978大径dmin0.9270.9331.0271.0331.1271.1331.3271.3251.5271.4961.7271.6961.9151.8862.1152.082.3962.382.8962.8743.3963.3543.8743.8384.3744.3384.8744.8265.3745.8385.7946.8386.7947.838中径d2min0.8050.7850.9050.8851.0050.9851.2051.1491.4031.2911.6031.4911.7641.6541.9641.8172.1912.1172.6872.583.1873.0043.583.4334.083.9014.584.3615.085.3915.2126.3916.2127.391单位：mm小径d3max

0.7380.6750.8380.7750.9380.8751.1381.0141.3381.1521.5231.3521.6751.491.8751.6282.0521.9282.5522.3673.0522.7433.3673.1193.8673.5584.3673.9954.8675.0584.7476.0585.7477.0582.22.52.5333.53.5444.54.5555.56677821.81.61.41.21.11

涂色部螺距为非常用规格；螺纹山角度：60°。大 径Dmin

中径D2min0.740.840.9081.2051.3731.5731.741.9082.2732.2082.7732.6753.2733.113.6753.5454.1754.0134.6754.485.1755.5135.356.5136.357.513小径D1min0.7290.8290.9291.0751.2211.4211.5671.7132.1212.0132.6212.4593.1212.853.4593.2423.9593.6884.4594.1344.9595.1884.9176.1885.9177.1880.0850.10.10.1120.1250.10.1250.10.140.10.160.140.180.140.190.140.20.140.190.2360.190.2360.19钻头径

公差

0.750.850.951.11.251.451.61.752.152.052.652.53.152.93.53.343.74.54.255.256.267.2公差0.0560.0670.0560.0670.0560.0670.0560.0750.0560.0850.0560.0850.0670.0950.0670.10.0850.10.0850.1060.0850.1250.1060.140.0740.140.1060.150.1060.140.180.140.180.14d2max0.8530.8380.9530.9381.0531.0381.2531.2051.4531.3541.6531.5541.821.7212.021.8882.2542.1882.7542.6553.2543.0893.6553.5234.1553.9914.6554.4565.1555.4915.3246.4916.3247.491公差0.0480.0530.0480.0530.0480.0530.0480.0560.050.0630.050.0630.0560.0670.0560.0710.0630.0710.0670.0750.0670.0850.0750.090.0750.090.0750.0950.0750.10.1120.10.1120.1D2max0.830.931.0031.281.4581.6581.832.0032.3582.3032.8632.7753.3633.2223.7753.6634.2754.1314.7754.6055.2755.6455.56.6456.57.645公差0.090.090.0950.0750.0850.0850.090.0950.0850.0950.090.10.090.1120.10.1180.10.1180.10.1250.10.1320.150.1320.150.132D1max---1.161.3211.5211.6791.8382.2212.1382.7212.5993.2213.013.5993.4224.0993.8784.5994.3345.0995.3785.1536.3786.1537.378