标准螺距

标准螺距表公制标准牙的牙距如下：螺纹规格*螺距底孔螺纹规格*螺距底孔M1*0.25M20*2.517.5M1.2*0.25M22*2.519.5M1.6*0.35M24*3.021M2*0.41.6M