Binding Head- Binding screw heads are similar to pan heads and generally have a deep slot in the middle of the head. They also have a prominent undercut beneath the head from the screw that provides space for wire connections. Binding head screws are great for electrical purposes. Hex head https://typesofroofrepair04814.blogdeazar.com/29480432/not-known-factual-statements-about-types-of-screw-head-drives