McFeely's ProMaster Screws

ProMaster® wood screws are thicker and made of softer metal, making them more snap-resistant than the brittle steel used in drywall screws. They get heat treated for strength, but we suggest you use a pilot hole for most applications like hardwoods to guarantee that your screw won't break off and your wood won't crack. Driving a screw into wood causes friction. This friction results in the screw heating up. This causes flaws in the material. The screw will expand inside of the predrilled hole, that was drilled for the specific size, the screw will seize in the hole. ProMaster® is primarily for connecting wood to wood and are known for the clamping force they provide to strengthen a joint. This is achieved by having 2/3 of the screw threaded with a deep gripping pitch and a smooth shank near the head.