国标公制螺纹规格一览表.doc

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1、公制螺纹规格一览表　　　　螺纹标准规格有公制、英制、美制等等，各种标准都有其不同的表示方法。公制螺纹用螺距来表示，美英制螺纹用每英寸内的螺纹牙数来表示，这是它们最大的区别，外螺纹大径(单位mm)-----------------内螺纹小径(单位mm)-----------------序号规格型号最大最小公差最大最小公差1M10*19.9749.7940.1809.1578.9170.2402M12*1.511.96811.7320.23610.67610.3760.3003M14*1.513.96813.7320.23612.67612.3760.3004M16*1.515.96

2、815.7320.23614.67614.3760.3005M18*1.517.96817.7320.23616.67616.3760.3006M20*1.519.96819.7320.23618.67618.3760.3007M22*1.521.96821.7320.23620.67620.3760.3008M24*1.523.96823.7320.23622.67622.3760.3009M26*1.525.96825.7320.23624.67624.3760.30010M27*1.526.96826.7320.23625.67625.3760.30011M30*1.529

3、.96829.7320.23628.67628.3760.30012M27*226.96226.6820.28025.21024.8350.37513M30*229.96229.6820.28028.21027.8350.37514M33*232.96232.6820.28031.21030.8350.37515M36*235.96235.6820.28034.21033.8350.37516M42*241.96241.6820.28040.21039.835