DIN 939
DIN 939 , Stud Bolts, double ends thread bolt, stud class 4.8, class 8.8
Dimension of DIN 939 as below:
 |
| Size | M6 | M8 | M10 | M12 | M16 | M20 |
| e | 7.5 | 10 | 12 | 15 | 20 | 25 |
| x | 2.5 | 3.2 | 3.8 | 4.3 | 5.0 | 6.3 |
| b up to 125 | 18 | 22 | 26 | 30 | 38 | 46 |
| b up to 200 | 24 | 28 | 32 | 36 | 44 | 52 |
| b over 200 | — | — | 45 | 49 | 57 | 65 |
1. All size in mm ;