标准螺纹下孔孔径表

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1、公制牙粗螺纹(60°)　公制牙细螺纹(60°)称呼标准径铜、铁不锈钢、铝称呼标准径铜、铁不锈钢、铝　　D1-上限D1-下限D1-上限D1-下限　　D1-上限D1-下限D1-上限D1-下限M1x0.250.750.80.760.830.79M1x0.20.80.840.80.860.82M1.1x0.250.850.90.860.930.89M1.1x0.20.90.940.90.960.92M1.2x0.250.9510.961.030.99M1.2x0.211.0411.061.02M1.4x0.31.11.161.111.191.14M1.4x0.21.21.2

2、41.21.261.22M1.6x0.351.251.341.291.371.32M1.6x0.21.41.441.41.461.42M1.7x0.351.351.441.391.471.42*M1.7x0.21.451.521.481.541.5M1.8x0.351.451.541.491.571.52M1.8x0.21.61.641.61.661.62M2x0.41.61.71.651.731.68M2x0.251.751.811.771.831.79M2.2x0.451.751.861.811.891.84M2.2x0.251.952.011.972.031.

3、99M2.3x0.41.921.952.031.98*M2.3x0.252.052.082.042.12.06M2.5x0.452.12.162.112.192.14M2.5x0.352.22.252.22.272.22M2.6x0.452.22.262.212.292.24*M2.6x0.352.22.272.232.292.25M3x0.52.52.622.572.652.6M3x0.352.72.742.72.772.72*M3x0.62.42.472.422.52.45M3.5x0.353.23.243.23.273.22M3.5x0.62.93.042.9

4、83.073.01M4x0.53.53.623.553.653.58M4x0.73.33.453.393.483.42M4.5x0.544.124.054.154.08*M4x0.753.253.353.293.383.32M5x0.54.54.624.554.654.58M4.5x0.753.83.93.843.933.87M5.5x0.555.125.055.155.08M5x0.84.24.364.34.394.33M6x0.755.35.45.325.435.35*M5x0.94.14.24.144.244.18*M6x0.55.55.575.55.65.5

5、3M6x1.055.185.125.25.14M7x0.756.36.46.326.436.35M7x1.066.186.126.26.14*M7x0.56.56.576.56.66.53M8x1.256.86.956.8976.93M8x1.077.177.087.27.1M9x1.257.87.957.8987.93M8x0.757.37.47.327.437.35M10x1.58.58.78.68.758.65*M8x0.57.57.5577.577.52M11x1.59.59.79.69.759.65M9x1.088.188.18.28.02M12x1.75

6、10.310.510.410.5410.44M9x0.758.38.48.328.438.35M14x2.01212.2612.1512.312.18M10x1.258.88.958.8598.9M16x2.01414.2614.1514.314.18M10x1.099.189.089.239.13M18x2.515.515.815.6515.8515.7M10x0.759.39.49.329.459.37M20x2.517.517.817.6517.8517.7*M10x0.59.59.5599.589.53M22x2.519.519.819.6519.8519.

7、7M11x1.01010.210.110.2510.15M24x3.02121.321.1521.3521.2M11x0.7510.310.410.3210.4510.37M27x3.02424.324.1524.3524.2M12x1.510.510.7310.610.7810.65M30x3.526.526.826.626.926.7M12x1.2510.810.9510.831110.88M33x3.529.529.829.629.929.7M12x1.01111.211.111.2511.15M36x4.03232.3532.132.432.15*M12