Banded professional screw C4+ for outdoor use. Also waxed for easier tightening. A small thread under the head keeps the screw in place in the band so you can work quickly without interruption. The cutter tip prevents the wood from cracking The Pro-Point screw is developed for professionals and discerning DIYers. Maximum performance and quality at the lowest prices on the market Pro-Point screws are made for professionals and discerning DIYers. Maximum performance and quality at the lowest prices on the market. We offer a unique GUARANTEE "fits your machine guarantee", which means that we take responsibility for the strapped screw fitting your machine. In the unlikely event that it does not work in the machine, we will take the screw back free of charge without any costs to the customer.