1.own factory and OEM 2.can be heat treatment by ourself. 3.can be finished various of surface as per customer's requirement

Product Description Detail:

1.Size: M3.5/3.9/4.2/4.8/#6/#7/#8/#10/#12

2.length: 12---130mm

3.Surface: WZP. YZP. Phosphating  black. gray. Black Oxide...etc

4.Category: SS/2S/CS   

5.Head: Bugle

6.Phlips #2 Drive