DIN85-1990 开槽盘头螺钉标准
开槽盘头螺钉
执行标准：DIN85-1990
| 公称直径d | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | |
| 螺距P | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | |
| b min | 25 | 38 | 38 | 38 | 38 | 38 | 38 | |
| dk | max | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
| min | 5.7 | 6.64 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 | |
| k | max | 1.8 | 2.1 | 2.4 | 3 | 3.6 | 4.8 | 6 |
| min | 1.66 | 1.96 | 2.26 | 2.86 | 3.3 | 4.5 | 5.7 | |
| n | max | 1 | 1.2 | 1.51 | 1.51 | 1.91 | 2.31 | 2.81 |
| min | 0.86 | 1.06 | 1.26 | 1.26 | 1.66 | 2.06 | 2.56 | |
| t min | 0.7 | 0.8 | 1 | 1.2 | 1.4 | 1.9 | 2.4 | |