29 扣紧螺母GB/T 805—1988标准
扣紧螺母GB805—1988标准
扣紧螺母尺寸规格、质量见表4.3-46、表4.3-47。
表4.3-46 扣紧螺母的尺寸规格（mm)
| 螺纹规格 | D | s | D1 | n | e | m | δ | ||
| DxP | max | min | max | min | |||||
| 6×1 | 5.3 | 5 | 10 | 9.73 | 7.5 | 1 | 11.5 | 3 | 0.4 |
| 8×1.25 | 7.16 | 6.8 | 13 | 12.73 | 9.5 | 16.2 | 4 | 0.5 | |
| 10x 1.5 | 8.86 | 8.5 | 16 | 15.73 | 12 | 1.5 | 19.6 | 5 | 0.6 |
| 12 x 1.75 | 10.73 | 10.3 | 18 | 17.73 | 14 | 21.9 | 0.7 | ||
| (14×2) | 12.43 | 12 | 21 | 20.67 | 16 | 2 | 25.4 | 6 | 0.8 |
| 16×2 | 14.43 | 14 | 24 | 23.67 | 18 | 27.7 | |||
| (18×2.5) | 15.93 | 15.5 | 27 | 26.16 | 20.5 | 2.5 | 31.2 | 7 | 1 |
| 20×2.5 | 17.93 | 17.5 | 30 | 29.16 | 22.5 | 34.6 | |||
| (22×2.5) | 20.02 | 19.5 | 34 | 33 | 25 | 3 | 36.9 | ||
| 24×3 | 21.52 | 21 | 36 | 35 | 27 | 41.6 | 9 | 1.2 | |
| (27×3) | 24.52 | 24 | 41 | 40 | 30 | 47.3 | |||
| 30×3.5 | 27.02 | 26.5 | 46 | 45 | 34 | 53.1 | 1.4 | ||
| 36×4 | 32.62 | 32 | 55 | 53.8 | 40 | 63.5 | 12 | ||
| 42×4.5 | 38.12 | 37.5 | 65 | 63.8 | 47 | 75 | 1.8 | ||
| 48×5 | 43.62 | 43 | 75 | 73.1 | 54 | 86.5 | 14 | ||
表4.3-47 扣紧螺母的质量（kg)
每1000件钢制品的大约质量
| 规格 | 6×1 | M8xl.25 | M10xl.5 | M12x 1.75 | (M14x2) | M16x2 | (M18x2.5) | M20x2.5 | (M22x2.5) | M24x3 | (M27x3) | M30x3.5 | M36x4 | M42x4.5 | M48x5 |
| 质量 | 0.52 | 1.26 | 2.24 | 2.99 | 4.68 | 5.16 | 8.4 | 9.66 | 10.4 | 17.46 | 20.94 | 29.06 | 43.99 | 72.37 | 97.16 |