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1、普通螺纹标准规格表 普通螺纹基本尺寸（mm）普通螺纹基本尺寸（mm） 公称直 径 螺距 p中径小径公称直 径 螺距 p中径小径 10.250.8380.729221.521.02620.376 1.20.251.0380.929222.520.37619.294 1.40.31.2051.07524222.70121.835 1.60.351.3731.22124322.05120.752 20.41.7401.56727225.70124.835 2.50.452.2082.01327325.05123.752 30.52.6752.45930228.70127.835 3.50.63.11
2、02.850303.527.72726.211 40.73.5453.24233231.70130.835 4.50.754.0133.688333.530.72729.211 50.84.4804.13436334.05132.752 615.3504.91736433.04231.670 817.3506.91739337.05135.752 81.257.1886.64739436.04234.670 1019.3508.91742340.05138.752 101.259.1888.647424.539.07737.129 101.59.0268.37645343.05141.752
3、121.2511.18810.647454.542.07740.129 121.511.02610.37648346.05144.752 121.7510.86310.10648544.75242.587 141.513.02612.37652449.40247.670 14212.70111.83552548.75246.587 161.515.02614.37658453.40251.670 16214.70113.835584.552.42850.046 182.516.37615.29460457.40255.670 201.519.02618.376605.556.42854.046 20218.70117.83564461.40259.670 202.518.37617.29464660.10357.505
