These corrosion protected construction screws are ideal for battens and squared timbers, offering a secure connection with high load bearing capacity. The SPAX Wirox Washer Head Screws feature a T-STAR Plus bit recess for a secure fit, ensuring quicker, firmer, and more efficient driving without bit slips. The 4CUT point provides exact screw positioning, reduces wood splitting, and lowers the required screwing-in torque. These screws are partially threaded and do not require pre-drilling, simplifying your projects. The WIROX coating provides excellent corrosion protection, ensuring durability and long-lasting performance for your construction needs.