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1、螺紋底孔直徑公制普通螺紋公制細牙螺紋螺紋代號鉆頭直徑螺紋代號鉆頭直徑螺紋代號鉆頭直徑螺紋代號鉆頭直徑HSS硬質(zhì)合金HSS硬質(zhì)合金HSS硬質(zhì)合金HSS硬質(zhì)合金M1x0.250.750.75M1*0.20.80.8M20*2.018.018.3M42*3.039.0——M1.1x0.250.850.85M1.1*0.20.90.9M20*1.518.518.7M42*2.040.0——M1.2x0.250.950.95M1.2*0.21.01.0M20*1.019.019.1M42*1.540.5M1.4*0.31.101
2、.10M1.4*0.21.21.2M22*2.020.0——M45*4.041.0M1.6*0.351.251.3M1.6*0.21.41.4M22*1.520.5——M45*3.042.0M1.7*0.351.351.4M1.8*0.21.61.6M22*1.021.0——M45*2.043.0M1.8*0.351.451.5M2*0.251.751.75M24*2.022.0——M45*1.543.5M2*0.41.601.65M2.2*0.251.952.0M24*1.522.5——M48*4.044.0M2.2
3、*0.451.751.8M2.5*0.352.22.2M24*1.023.0——M48*3.045.0M2.3*0.41.91.95M3*0.352.72.7M25*2.023.0——M48*2.046.0M2.5*0.452.12.15M3.5*0.353.23.2M25*1.523.5——M48*1.546.5M2.6*0.452.152.2M4*0.53.53.55M25*1.024.0——M50*3.047.0M3*0.52.52.55M4.5*0.54.04.05M26*1.524.5——M50*2.048.
4、0M3.5*0.62.92.95M5*0.54.54.55M27*2.025.0——M50*1.548.5M4*0.73.33.4M5.5*0.55.05.05M27*1.525.5————M4.5*0.753.83.9M6*0.755.35.35M27*1.026.0————M5*0.84.24.3M7*0.756.36.35M28*2.026.0——M6*1.05.05.1M8*1.07.07.1M28*1.526.5——M7*1.06.06.1M8*0.757.37.35M28*1.027.0——M8*1.256
5、.86.9M9*1.08.08.1M30*3.027.0——M9*1.257.87.9M9*0.758.38.35M30*2.028.0——M10*1.58.58.7M10*1.258.88.9M30*1.528.5——M11*1.59.59.7M10*1.09.09.1M30*1.029.0——M12*1.7510.310.5M10*0.759.39.35M32*2.030.0——M14*2.012.012.2M11*1.010.010.1M32*1.530.5——M16*2.014.14.2M11*0.7510.3
6、10.3M33*3.030.0——M18*2.515.515.7M12*1.510.510.7M33*2.031.0——M20*2.517.517.7M12*1.2510.810.9M33*1.531.5——M22*2.519.519.7M12*1.011.011.1M35*1.533.5——M24*3.021.0——M14*1.512.512.7M36*3.033.0——M27*3.024.0——M14*1.013.013.1M36*2.034.0——M30*3.526.5——M15*1.513.513.7M36*1
7、.534.5——M33*3.529.0——M15*1.014.014.1M38*1.536.5——M36*4.032.0——M16*1.514.514.7M39*3.036.0——M39*4.035.0——M6*1.015.015.1M39*2.037.0——M42*4.537.5——M17*1.515.515.7M39*1.537.5——M45*4.540.5——M17*1.016.016.1M40*3.037.0——M48*5.043.0——M18*2.016.016.3M40*2.038.0——M18*1.516
8、.516.7N40*1.538.5——M18*1.017.017.1N42*4038.0——
