标准螺纹下孔孔径表
标准螺纹下孔孔径表
| 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 | |||||
| M1x0.25 | 0.75 | 0.8 | 0.76 | 0.83 | 0.79 | M1x0.2 | 0.8 | 0.84 | 0.8 | 0.86 | 0.82 | |
| M1.1x0.25 | 0.85 | 0.9 | 0.86 | 0.93 | 0.89 | M1.1x0.2 | 0.9 | 0.94 | 0.9 | 0.96 | 0.92 | |
| M1.2x0.25 | 0.95 | 1 | 0.96 | 1.03 | 0.99 | M1.2x0.2 | 1 | 1.04 | 1 | 1.06 | 1.02 | |
| M1.4x0.3 | 1.1 | 1.16 | 1.11 | 1.19 | 1.14 | M1.4x0.2 | 1.2 | 1.24 | 1.2 | 1.26 | 1.22 | |
| M1.6x0.35 | 1.25 | 1.34 | 1.29 | 1.37 | 1.32 | M1.6x0.2 | 1.4 | 1.44 | 1.4 | 1.46 | 1.42 | |
| M1.7x0.35 | 1.35 | 1.44 | 1.39 | 1.47 | 1.42 | *M1.7x0.2 | 1.45 | 1.52 | 1.48 | 1.54 | 1.5 | |
| M1.8x0.35 | 1.45 | 1.54 | 1.49 | 1.57 | 1.52 | M1.8x0.2 | 1.6 | 1.64 | 1.6 | 1.66 | 1.62 | |
| M2x0.4 | 1.6 | 1.7 | 1.65 | 1.73 | 1.68 | M2x0.25 | 1.75 | 1.81 | 1.77 | 1.83 | 1.79 | |
| M2.2x0.45 | 1.75 | 1.86 | 1.81 | 1.89 | 1.84 | M2.2x0.25 | 1.95 | 2.01 | 1.97 | 2.03 | 1.99 | |
| M2.3x0.4 | 1.9 | 2 | 1.95 | 2.03 | 1.98 | *M2.3x0.25 | 2.05 | 2.08 | 2.04 | 2.1 | 2.06 | |
| M2.5x0.45 | 2.1 | 2.16 | 2.11 | 2.19 | 2.14 | M2.5x0.35 | 2.2 | 2.25 | 2.2 | 2.27 | 2.22 | |
| M2.6x0.45 | 2.2 | 2.26 | 2.21 | 2.29 | 2.24 | *M2.6x0.35 | 2.2 | 2.27 | 2.23 | 2.29 | 2.25 | |
| M3x0.5 | 2.5 | 2.62 | 2.57 | 2.65 | 2.6 | M3x0.35 | 2.7 | 2.74 | 2.7 | 2.77 | 2.72 | |
| *M3x0.6 | 2.4 | 2.47 | 2.42 | 2.5 | 2.45 | M3.5x0.35 | 3.2 | 3.24 | 3.2 | 3.27 | 3.22 | |
| M3.5x0.6 | 2.9 | 3.04 | 2.98 | 3.07 | 3.01 | M4x0.5 | 3.5 | 3.62 | 3.55 | 3.65 | 3.58 | |
| M4x0.7 | 3.3 | 3.45 | 3.39 | 3.48 | 3.42 | M4.5x0.5 | 4 | 4.12 | 4.05 | 4.15 | 4.08 | |
| *M4x0.75 | 3.25 | 3.35 | 3.29 | 3.38 | 3.32 | M5x0.5 | 4.5 | 4.62 | 4.55 | 4.65 | 4.58 | |
| M4.5x0.75 | 3.8 | 3.9 | 3.84 | 3.93 | 3.87 | M5.5x0.5 | 5 | 5.12 | 5.05 | 5.15 | 5.08 | |
| M5x0.8 | 4.2 | 4.36 | 4.3 | 4.39 | 4.33 | M6x0.75 | 5.3 | 5.4 | 5.32 | 5.43 | 5.35 | |
| *M5x0.9 | 4.1 | 4.2 | 4.14 | 4.24 | 4.18 | *M6x0.5 | 5.5 | 5.57 | 5.5 | 5.6 | 5.53 | |
| M6x1.0 | 5 | 5.18 | 5.12 | 5.2 | 5.14 | M7x0.75 | 6.3 | 6.4 | 6.32 | 6.43 | 6.35 | |
| M7x1.0 | 6 | 6.18 | 6.12 | 6.2 | 6.14 | *M7x0.5 | 6.5 | 6.57 | 6.5 | 6.6 | 6.53 | |
| M8x1.25 | 6.8 | 6.95 | 6.89 | 7 | 6.93 | M8x1.0 | 7 | 7.17 | 7.08 | 7.2 | 7.1 | |
| M9x1.25 | 7.8 | 7.95 | 7.89 | 8 | 7.93 | M8x0.75 | 7.3 | 7.4 | 7.32 | 7.43 | 7.35 | |
| M10x1.5 | 8.5 | 8.7 | 8.6 | 8.75 | 8.65 | *M8x0.5 | 7.5 | 7.55 | 7 | 7.57 | 7.52 | |
| M11x1.5 | 9.5 | 9.7 | 9.6 | 9.75 | 9.65 | M9x1.0 | 8 | 8.18 | 8.1 | 8.2 | 8.02 | |
| M12x1.75 | 10.3 | 10.5 | 10.4 | 10.54 | 10.44 | M9x0.75 | 8.3 | 8.4 | 8.32 | 8.43 | 8.35 | |
| M14x2.0 | 12 | 12.26 | 12.15 | 12.3 | 12.18 | M10x1.25 | 8.8 | 8.95 | 8.85 | 9 | 8.9 | |
| M16x2.0 | 14 | 14.26 | 14.15 | 14.3 | 14.18 | M10x1.0 | 9 | 9.18 | 9.08 | 9.23 | 9.13 | |
| M18x2.5 | 15.5 | 15.8 | 15.65 | 15.85 | 15.7 | M10x0.75 | 9.3 | 9.4 | 9.32 | 9.45 | 9.37 | |
| M20x2.5 | 17.5 | 17.8 | 17.65 | 17.85 | 17.7 | *M10x0.5 | 9.5 | 9.55 | 9 | 9.58 | 9.53 | |
| M22x2.5 | 19.5 | 19.8 | 19.65 | 19.85 | 19.7 | M11x1.0 | 10 | 10.2 | 10.1 | 10.25 | 10.15 | |
| M24x3.0 | 21 | 21.3 | 21.15 | 21.35 | 21.2 | M11x0.75 | 10.3 | 10.4 | 10.32 | 10.45 | 10.37 | |
| M27x3.0 | 24 | 24.3 | 24.15 | 24.35 | 24.2 | M12x1.5 | 10.5 | 10.73 | 10.6 | 10.78 | 10.65 | |
| M30x3.5 | 26.5 | 26.8 | 26.6 | 26.9 | 26.7 | M12x1.25 | 10.8 | 10.95 | 10.83 | 11 | 10.88 | |
| M33x3.5 | 29.5 | 29.8 | 29.6 | 29.9 | 29.7 | M12x1.0 | 11 | 11.2 | 11.1 | 11.25 | 11.15 | |
| M36x4.0 | 32 | 32.35 | 32.1 | 32.4 | 32.15 | *M12x0.5 | 11.5 | 11.57 | 11.5 | 11.62 | 11.55 | |
| M39x4.0 | 35 | 35.35 | 35.1 | 35.4 | 35.15 | M14x1.5 | 12.5 | 12.7 | 12.57 | 12.75 | 12.62 | |
| M42x4.5 | 37.5 | 37.9 | 37.65 | 37.95 | 37.7 | M14x1.0 | 13 | 13.2 | 13.1 | 13.25 | 13.15 | |
| M45x4.5 | 40.5 | 40.9 | 40.65 | 40.95 | 40.7 | M15x1.5 | 13.5 | 13.7 | 13.57 | 13.75 | 13.62 | |
| M48x5.0 | 43 | 43.4 | 43.15 | 43.5 | 43.2 | M15x1.0 | 14 | 14.2 | 14.1 | 14.25 | 14.15 | |
| M16x1.5 | 14.5 | 14.7 | 14.57 | 14.75 | 14.62 | |||||||
| 公制牙细螺纹(60°) | M16x1.0 | 15 | 15.2 | 15.1 | 15.25 | 15.15 | ||||||
| M17x1.5 | 15.5 | 15.75 | 15.6 | 15.8 | 15.65 | |||||||
| 称 呼 | 标准径 | 铜、铁 | 不锈钢、铝 | M17x1.0 | 16 | 16.2 | 16.07 | 16.25 | 16.12 | |||
| D1-上限 | D1-下限 | D1-上限 | D1-下限 | M18x2.0 | 16 | 16.25 | 16.1 | 16.31 | 16.2 | |||
| M33x2.0 | 31 | 31.3 | 31.1 | 31.35 | 31.15 | M18x1.5 | 16.5 | 16.73 | 16.6 | 16.78 | 16.65 | |
| M33x1.5 | 31.5 | 31.77 | 31.6 | 31.82 | 31.65 | M18x1.0 | 17 | 17.2 | 17.07 | 17.25 | 17.12 | |
| M35x1.5 | 33.5 | 33.77 | 33.6 | 33.82 | 33.65 | M20x2.0 | 18 | 18.25 | 18.1 | 18.3 | 18.15 | |
| M36x3.0 | 33 | 33.35 | 33.15 | 33.4 | 33.2 | M20x1.5 | 18.5 | 18.73 | 18.6 | 18.78 | 18.65 | |
| M36x2.0 | 34 | 34.3 | 34.1 | 34.33 | 34.15 | M20x1.0 | 19 | 19.2 | 19.07 | 19.25 | 19.12 | |
| M36x1.5 | 34.5 | 34.77 | 34.6 | 34.82 | 34.65 | M22x2.0 | 20 | 20.25 | 20.1 | 20.3 | 20.15 | |
| M38x1.5 | 36.5 | 36.77 | 36.6 | 36.82 | 36.65 | M22x1.5 | 20.5 | 20.73 | 20.6 | 20.78 | 20.65 | |
| M39x3.0 | 36 | 36.35 | 36.15 | 36.4 | 36.2 | M22x1.0 | 21 | 21.2 | 21.07 | 21.25 | 21.12 | |
| M39x2.0 | 37 | 37.3 | 37.1 | 37.35 | 37.15 | M24x2.0 | 22 | 22.25 | 22.1 | 22.3 | 20.15 | |
| M39x1.5 | 37.5 | 37.77 | 37.6 | 37.82 | 37.65 | M24x1.5 | 22.5 | 22.73 | 22.6 | 22.78 | 22.65 | |
| M40x3.0 | 37 | 37.35 | 37.15 | 37.4 | 37.2 | M24x1.0 | 23 | 23.2 | 23.07 | 23.25 | 23.12 | |
| M40x2.0 | 38 | 38.3 | 38.1 | 38.35 | 38.15 | M25x2.0 | 23 | 23.25 | 23.1 | 23.3 | 23.15 | |
| M40x1.5 | 38.5 | 38.77 | 38.6 | 38.82 | 38.65 | M25x1.5 | 23.5 | 23.73 | 23.6 | 23.78 | 23.65 | |
| M42x4.0 | 38 | 38.37 | 38.15 | 38.42 | 38.2 | M25x1.0 | 24 | 24.2 | 24.07 | 24.25 | 24.12 | |
| M42x3.0 | 39 | 39.35 | 39.15 | 39.4 | 39.2 | M26x1.5 | 24.5 | 24.73 | 24.6 | 24.78 | 24.65 | |
| M42x2.0 | 40 | 40.3 | 40.1 | 40.35 | 40.15 | M27x2.0 | 25 | 25.25 | 25.1 | 25.3 | 25.15 | |
| M42x1.5 | 40.5 | 40.77 | 40.6 | 40.82 | 40.65 | M27x1.5 | 25.5 | 25.73 | 25.6 | 25.78 | 25.65 | |
| M45x4.0 | 41 | 41.37 | 41.15 | 41.42 | 41.2 | M27x1.0 | 26 | 26.2 | 26.07 | 26.25 | 26.12 | |
| M45x3.0 | 42 | 42.35 | 42.15 | 42.4 | 42.2 | M28x2.0 | 26 | 26.25 | 26.1 | 26.3 | 26.15 | |
| M45x2.0 | 43 | 43 | 43.1 | 43.35 | 43.15 | M28x1.5 | 26.5 | 26.73 | 26.6 | 26.78 | 26.65 | |
| M45x1.5 | 43.5 | 43.77 | 43.6 | 43.82 | 43.65 | M28x1.0 | 27 | 27.2 | 27.07 | 27.25 | 27.12 | |
| M48x4.0 | 44 | 44.37 | 44.15 | 44.42 | 44.2 | M30x3.0 | 27 | 27.35 | 27.15 | 27.4 | 27.2 | |
| M48x3.0 | 45 | 45.35 | 45.15 | 45.4 | 45.2 | M30x2.0 | 28 | 28.3 | 28.15 | 28.35 | 28.2 | |
| M48x2.0 | 46 | 46.3 | 46.1 | 46.35 | 46.15 | M30x1.5 | 28.5 | 28.77 | 28.6 | 28.82 | 28.65 | |
| M48x1.5 | 46.5 | 46.77 | 46.6 | 46.82 | 46.65 | M30x1.0 | 29 | 29.25 | 29.1 | 29.3 | 29.15 | |
| M50x3.0 | 47 | 47.35 | 47.15 | 47.4 | 47.2 | M32x2.0 | 30 | 30.3 | 30.15 | 30.35 | 30.2 | |
| M50x2.0 | 48 | 48.3 | 48.1 | 48.35 | 48.15 | M32x1.5 | 30.5 | 30.77 | 30.6 | 30.82 | 30.65 | |
| M50x1.5 | 48.5 | 48.77 | 48.6 | 48.82 | 48.65 | M33x3.0 | 30 | 30.35 | 30.15 | 30.4 | 30.2 | |
