Zinc and blue-passivated and case-hardened. For use with high density fibre boards. Tri-Lock threadform and shank incorporate the benefits of a single coarse thread with a twin thread start. Spiral point, part thread and under-head ribs for self-countersinking. Countersunk Prodrive head.
Average Customer Rating:
(8 Reviews) 8
8 of 8(100%)reviewers would recommend this product.