
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 | 
| 1 | M10*1 | 9.974 | 9.794 | 0.180 | 9.157 | 8.917 | 0.240 | 
| 2 | M12*1.5 | 11.968 | 11.732 | 0.236 | 10.676 | 10.376 | 0.300 | 
| 3 | M14*1.5 | 13.968 | 13.732 | 0.236 | 12.676 | 12.376 | 0.300 | 
| 4 | M16*1.5 | 15.968 | 15.732 | 0.236 | 14.676 | 14.376 | 0.300 | 
| 5 | M18*1.5 | 17.968 | 17.732 | 0.236 | 16.676 | 16.376 | 0.300 | 
| 6 | M20*1.5 | 19.968 | 19.732 | 0.236 | 18.676 | 18.376 | 0.300 | 
| 7 | M22*1.5 | 21.968 | 21.732 | 0.236 | 20.676 | 20.376 | 0.300 | 
| 8 | M24*1.5 | 23.968 | 23.732 | 0.236 | 22.676 | 22.376 | 0.300 | 
| 9 | M26*1.5 | 25.968 | 25.732 | 0.236 | 24.676 | 24.376 | 0.300 | 
| 10 | M27*1.5 | 26.968 | 26.732 | 0.236 | 25.676 | 25.376 | 0.300 | 
| 11 | M30*1.5 | 29.968 | 29.732 | 0.236 | 28.676 | 28.376 | 0.300 | 
| 12 | M27*2 | 26.962 | 26.682 | 0.280 | 25.210 | 24.835 | 0.375 | 
| 13 | M30*2 | 29.962 | 29.682 | 0.280 | 28.210 | 27.835 | 0.375 | 
| 14 | M33*2 | 32.962 | 32.682 | 0.280 | 31.210 | 30.835 | 0.375 | 
| 15 | M36*2 | 35.962 | 35.682 | 0.280 | 34.210 | 33.835 | 0.375 | 
| 16 | M42*2 | 41.962 | 41.682 | 0.280 | 40.210 | 39.835 | |
