Socket Head Cap Screws

We are offering socket head cap screws. Kindly note that grade 10.9 and 12.9 grade fasteners are not recommended for zinc plating as they may absorb hydrogen during the coating process, which then causes embrittlement of the bolts. Baking parts (hydrogen de-embrittlement) after coating will reduce the risk of failure, but this process can never be assumed to be 100% effective. For the requirement of plating on socket fasteners, we maintain ready stock range of grade 8.8 socket head fastener. Grade : 8.8 finish : regular black, zinc passivated