Description

Wirox coating provides a high level of surface hardness to give greater resistance to coating damage, and possesses anti-corrosion resistance 10 times greater than yellow zinc. Flange Head with Reinforced Neck Single Thread with Ground Serrations for Fast Accurate Driving Zinc-Plated Blue-Passivated Hardened Steel Construction WIROX Coated Partially Threaded No Splitting, Even When Close to Edge Chrome VI-Free Deeper Recess for Stronger Bit Hold