公制粗牙螺纹攻牙孔徑表规格螺距最小孔径建议孔径最大孔径规格螺距最小孔径建议孔径最大孔径M10.250.730.78M8 1.25 6.65 6.91 6.98 M1.10.250.830.89M9 1.257.657.917.98 M1.20.250.930.98M10 1.58.388.688.75 M1.40.3 1.08 1.14M11 1.59.389.689.75 M1.60.35 1.22 1.32M12 1.7510.1110.4410.53 M1.70.35 1.33 1.42M14211.8412.2112.31 M1.80.35 1.42 1.52M16213.8414.2114.31 M20.4 1.57 1.67M18 2.515.2915.7415.85 M2.20.45 1.71 1.84M20 2.517.2917.7417.85 M2.30.45 1.87 1.97M22 2.519.2919.7419.85 M2.50.45 2.01 2.14M24320.7521.2521.38 M2.60.45 2.12 2.23M27323.7524.2524.38 M30.5 2.46 2.6 2.64M30 3.526.2126.7726.92 M3.50.6 2.85 3.01 3.05M33 3.529.2129.7729.92 M40.7 3.24 3.42 3.47M36431.6732.2732.42 M4.50.75 3.69 3.88 3.92M39434.6735.2732.42 M50.8 4.13 4.33 4.38M42 4.537.1337.837.98 M61 4.92 5.15 5.22M45 4.540.1340.840.98 M71 5.92 6.15 6.22M48542.5943.343.49
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