公制外螺纹极限尺寸公制内螺纹极限尺寸公差等级：普通外螺纹M1.4以下选用等级6h，M1.4以上选用等级6g；公差等级：6H 螺纹代号：M细牙外螺纹选用等级6g。内螺纹底径尺寸参考小径尺寸,钻头的选用请考虑小径的极限尺寸。毛坯极限尺寸参考大径尺寸（非挤压加工）；螺纹山角度：60°涂色部螺距为非常用规格；螺纹山角度：60°。单位：mm小径大 径dmaxdmin公差 d2maxd2min公差 d3maxDminD2maxD2min公差 D1maxD1min公差0.20.9830.9270.0560.8530.8050.0480.7380.2510.9330.0670.8380.7850.0530.67510.830.740.09-0.7290.750.21.0831.0270.0560.9530.9050.0480.8380.251.11.0330.0670.9380.8850.0530.7751.10.930.840.09-0.8290.850.21.1831.1270.0561.0531.0050.0480.9380.251.21.1330.0671.0380.9850.0530.8751.21.0030.9080.095-0.9290.950.21.3831.3270.0561.2531.2050.0481.1380.31.41.3250.0751.2051.1490.0561.0141.41.281.2050.0751.161.0750.0851.10.21.5831.5270.0561.4531.4030.051.3380.351.5811.4960.0851.3541.2910.0631.1521.61.4581.3730.085 1.3211.2210.11.250.21.7831.7270.0561.6531.6030.051.5230.351.7811.6960.0851.5541.4910.0631.3521.81.6581.5730.085 1.5211.4210.11.450.251.9821.9150.0671.821.7640.0561.6750.41.9811.8860.0951.7211.6540.0671.4921.831.740.091.6791.5670.1121.60.252.1822.1150.0672.021.9640.0561.8750.452.182.080.11.8881.8170.0711.6282.22.0031.9080.095 1.8381.7130.1251.750.352.4812.3960.0852.2542.1910.0632.0522.52.3582.2730.085 2.2212.1210.12.150.452.482.380.12.1882.1170.0711.9282.52.3032.2080.095 2.1382.0130.1252.050.352.9812.8960.0852.7542.6870.0672.55232.8632.7730.092.7212.6210.12.650.52.982.8740.1062.6552.580.0752.36732.7752.6750.12.5992.4590.142.50.353.4813.3960.0853.2543.1870.0673.0523.53.3633.2730.093.2213.1210.13.150.63.4793.3540.1253.0893.0040.0852.7433.53.2223.110.1123.012.850.162.90.53.983.8740.1063.6553.580.0753.36743.7753.6750.13.5993.4590.143.50.73.9783.8380.143.5233.4330.093.11943.6633.5450.118 3.4223.2420.183.30.54.4484.3740.0744.1554.080.0753.8674.54.2754.1750.14.0993.9590.1440.754.4784.3380.143.9913.9010.093.5584.54.1314.0130.118 3.8783.6880.193.70.54.984.8740.1064.6554.580.0754.36754.7754.6750...
