DIN 6921
DIN 6921 , Flange Bolts, Hex flange bolts class 8.8, 10.9 or class 12.9 or stainless steel grade A2-70, A4-80 .
Dimension of DIN 6921 as below:
 |
| Size | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
| b min | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 46 |
| d2 max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 |
| 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 |
| S min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 |
1. All size in mm ;