DIN7991-1986 内六角沉头螺钉标准
内六角沉头螺钉
执行标准：DIN7991-1986
| 公杯直径 d | 螺距 P | b | C | dk | ds | k max | s | t | ||||||
| 1≤125 | 125<1≤200 | l>200 | max | min | max | win | max | min | max | min | ||||
| M3 | 0.5 | 12 | / | / | 0.2 | 6 | 5.7 | 3 | 2.86 | 1.7 | 2.1 | 2.02 | 1.2 | 0.95 |
| M4 | 0.7 | 14 | / | / | 0.3 | 8 | 7.64 | 4 | 3.82 | 2.3 | 2.6 | 2.52 | 1.8 | 1.55 |
| M5 | 0.8 | 16 | / | / | 0.3 | 10 | 9.64 | 5 | 4.82 | 2.8 | 3.1 | 3.02 | 2.3 | 2.05 |
| M6 | 1 | 18 | 24 | / | 0.3 | 12 | 11.57 | 6 | 5.82 | 3.3 | 4.12 | 4.02 | 2.5 | 2.25 |
| M8 | 1.25 | 22 | 28 | / | 0.4 | 16 | 15.57 | 8 | 7.78 | 4.4 | 5.14 | 5.02 | 3.5 | 3.2 |
| M10 | 1.5 | 26 | 32 | 45 | 0.5 | 20 | 19.48 | 10 | 9.78 | 5.5 | 6.14 | 6.02 | 4.4 | 4.1 |
| M12 | 1.75 | 30 | 36 | 49 | 0.5 | 24 | 23.48 | 12 | 11.73 | 6.5 | 6.175 | 8.025 | 4.6 | 4.3 |
| M14 | 2 | 34 | 40 | 53 | 0.5 | 27 | 26.48 | 14 | 13.73 | 7 | 10.175 | 10.025 | 4.8 | 4.5 |
| M16 | 2 | 38 | 44 | 57 | 0.5 | 30 | 29.48 | 16 | 15.73 | 7.5 | 10.175 | 10.025 | 5.3 | 5 |
| M18 | 2.5 | 42 | 48 | 61 | 0.5 | 33 | 32.38 | 18 | 17.73 | 8 | 12.212 | 12.032 | 5.5 | 5.2 |
| M20 | 2.5 | 46 | 52 | 65 | 0.5 | 36 | 35.38 | 20 | 19.67 | 8.5 | 12.212 | 12.032 | 5.9 | 5.6 |
| M22 | 2.5 | 50 | 56 | 69 | 1 | 36 | 35.38 | 22 | 21.67 | 13.1 | 14.212 | 14.032 | 8.8 | 8.44 |
| M24 | 3 | 54 | 60 | 73 | 1 | 39 | 38.38 | 24 | 23.67 | 14 | 14.212 | 14.032 | 10.3 | 9.87 |