DIN 6927
DIN 6927 , Prevailing torque All Metal Type Flange Nuts,  All Metal type Flange Lock Nuts
Dimension of DIN 6927 as below:
|  | 
| Size | c | e | h | m | m’ | s | r | |
| min | min | max | min | min | max | min | max | |
| M5 | 1 | 8.79 | 6.2 | 4.7 | 2.2 | 8 | 7.78 | 0.3 | 
| M6 | 1.1 | 11.05 | 7.3 | 5.7 | 3.1 | 10 | 9.78 | 0.36 | 
| M8 | 1.2 | 14.38 | 9.4 | 7.6 | 4.5 | 13 | 12.73 | 0.48 | 
| M10 | 1.5 | 16.64 | 11.4 | 9.6 | 5.5 | 15 | 14.73 | 0.6 | 
| M12 | 1.8 | 20.03 | 13.8 | 11.6 | 6.7 | 18 | 17.73 | 0.72 | 
| M14 | 2.1 | 23.36 | 15.9 | 13.3 | 7.8 | 21 | 20.67 | 0.88 |