SPAX Wirox T-STAR Washer Head Screws are corrosion protected construction screws designed for battens and squared timbers. They provide a secure connection with high load bearing capacity. The 4CUT point ensures exact screw positioning, reduces wood splitting, and lowers the required screwing-in torque. Featuring a T-STAR plus bit recess, these screws offer a secure fit and improved driving performance, minimizing bit slips. They are partially threaded and typically require no pre-drilling. The WIROX coating provides excellent corrosion protection, ensuring durability and strength for various construction applications.