| Class |
8.8 |
| Materials |
10B33. 10B21(Carbon steel) |
| Tensile Strength(min) |
880 N/ mm2 |
| Hardness |
HRC22-32 |
| Class |
12.9 |
| Materials |
SCM435 |
| Tensile Strength(min) |
1220 N/ mm2 |
| Hardness |
HRC39-44 |
| Class |
14.99 |
| Materials |
SCM440 . SNCM439 |
| Tensile Strength(min) |
1440 N/ mm2 |
| Hardness |
HRC40-49 |
| Class |
A2 |
| Materials |
302HQ |
| Tensile Strength(min) |
* |
| Hardness |
* |
Hexagon Socket Set Screws:
According: DIN913. 914. 915. 916
Material: SCM435
Hardness: HRC45-53
Surface plating: Black oxide
Point of tail:
cup point(916)
 |
dog point(915)
 |
flat point(913)
 |
cone point(914)
 |
| 
