32 圆翼蝶形螺母GB/T 62.1—2004标准
圆翼蝶形螺母GB62.1—2004标准
圆翼蝶形螺母的规格尺寸见表4.3-54。
表4.3-54 圆翼蝶形螺母的尺寸规格 （mm)
| 螺纹规格 | dk | d | L | k | m | y | y1 | d1 | t | ||
| D | min | ≈ | min | max | max | max | max | ||||
| M2 | 4 | 3 | 12 | ±1.5 | 6 | 土 1.5 | 2 | 2.5 | 3 | 2 | 0.3 |
| M2.5 | 5 | 4 | 16 | 8 | 3 | 2.5 | 3 | 2.5 | 0.3 | ||
| M3 | 5 | 4 | 16 | 8 | 3 | 2.5 | 3 | 3 | 0.4 | ||
| M4 | 7 | 6 | 20 | 10 | 4 | 3 | 4 | 4 | 0.4 | ||
| M5 | 8.5 | 7 | 25 | 12 | 5 | 3.5 | 4.5 | 4 | 0.5 | ||
| M6 | 10.5 | 9 | 32 | ±2 | 16 | 6 | 4 | 5 | 5 | 0.5 | |
| M8 | 14 | 12 | 40 | 20 | 8 | 4.5 | 5.5 | 6 | 0.6 | ||
| M10 | 18 | 15 | 50 | 25 | 10 | 5.5 | 6.5 | 7 | 0.7 | ||
| M12 | 22 | 18 | 60 | 30 | 12 | 7 | 8 | 8 | 1 | ||
| (M14) | 26 | 22 | 70 | 35 | ±2 | 14 | 8 | 9 | 9 | 1.1 | |
| M16 | 26 | 22 | 70 | 35 | 14 | 8 | 9 | 10 | 1.2 | ||
| (M18) | 30 | 25 | 80 | 40 | 16 | 8 | 10 | 10 | 1.4 | ||
| M20 | 34 | 28 | 90 | ±2.5 | 45 | 18 | 9 | 11 | 11 | 1.5 | |
| (M23) | 38 | 32 | 100 | 50 | 20 | 10 | 12 | 11 | 1.6 | ||
| M24 | 43 | 36 | 112 | 56 | 22 | 11 | 13 | 12 | 1.8 | ||
注：尽可能不采用括号内的规格。