TAPPING SCREWS
Self-tapping screws are typically used to secure wood, plastic, metal and brick together.as they are screwed into wood, plastic or metal. By using a screw driver and self-tapping screws, precisely fitted threads are created.Just like other types of fasteners, self-tapping screws are available in all shapes and sizes and are also available in numerous different head type, including hex head, flat head, pam head, truss head...etc. with differenct recess, phillips, pozi, trox, socket, square etc.What material is involved can help determine what type of self-tapping screw will work best. There are two types: thread-forming and thread-cutting.
