There's two kinds of hex screws: An Allen screw contains a hexagonal indent in the head, demanding an Allen wrench, and the other variety has no indent in the hexagonal head and have to be used or eliminated that has a socket wrench. When you’re dealing with several different substance https://screws30852.activosblog.com/28138639/the-fact-about-wood-screws-that-no-one-is-suggesting