| Material | 10B21 8.8 grade |
|---|---|
| Finish | zinc coating |
| LOGO | Grade and manufacturer's identification on head |
| Brand | OEM and ODM |
| Machining parts | precision metal parts |
|---|---|
| Machining parts | precision metal parts |
| Machining parts | precision metal parts |
| Material | Steel |
|---|---|
| Surface | Cooper |
| size | 30*60 |