DIN6921-1983 六角头法兰粗杆半牙螺栓标准
六角头法兰粗杆半牙螺栓
执行标准：DIN6921-1983
| 公称直径d | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | |
| 螺距P | 0.8 | 1 | 1/1.25 | 1/1.25/1.5 | 1. 25/1.5/1.75 | 1.5/2 | 1.5/2 | 1.5/2.5 | |
| b | L≤125 | 16 | 18 | 22 | 26 | 30 | 34 | 33 | 46 |
| 125≤L<200 | / | / | 28 | 32 | 36 | 40 | 44 | 52 | |
| L>200 | / | / | / | / | / | / | 57 | 65 | |
| dc max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 | |
| ds | max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | |
| K max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 | |
| S | max | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 |
| min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 | |