The Teks Roofing Screws are hex washer head style screws that allow for self-fastening into metal on wood or metal on metal applications, depending on the option chosen. Drill point screws attach to metal on metal applications and are self-drilling, allowing for no pilot hole ...The Teks Roofing Screws are hex washer head style screws that allow for self-fastening into metal on wood or metal on metal applications, depending on the option chosen. Drill point screws attach to metal on metal applications and are self-drilling, allowing for no pilot hole being needed before installing onto the material.
Sharp point screws attach to metal on wood applications and are self-tapping, which requires a pilot hole that is slightly smaller than the screws diameter. Teks Roofing screws are highly versatile and are great for attaching corrugated roofing panels. Measurement Standard: SAE.