公制螺纹牙距表.doc

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1、公制螺纹牙距表美制统一标准螺纹牙数表公称直径牙距mm公称直径直径尺寸牙距＝每英寸牙数毫米粗牙细牙号＜1/4"英寸in毫米mm粗牙UNC细牙UNFM10.250.20#0.061.524-80M1.20.250.21#0.0731.8546472M1.60.350.22#0.0862.1845664M20.40.253#0.0992.5154856M2.50.450.354#0.1122.8454048M30.50.355#0.1253.1754044M40.70.56#0.1383.5053240M50.80.58#0.16

2、44.1663236M610.7510#0.194.8262432M81.25112#0.2165.4862428M101.51.251/4"0.256.3502028M121.751.255/16"0.31257.9381824M1421.53/8"0.3759.5251624M1621.57/16"0.437511.1131420M182.51.51/2"0.512.7001320M202.51.59/16"0.562514.2881218M222.51.55/8"0.62515.8751118M24323/4"0.75

3、19.0501016M27327/8"0.87522.225914M303.521"125.400812(M33)3.521-1/8"1.12528.575712M36431-1/4"1.2531.750712(M39)431-3/8"1.37534.925612M424.531-1/2"1.538.100612(M45)4.531-3/4"1.7544.4505-M48532"250.8004.5-