Lath screws are highly versatile and are used to attach metal to wood, fiberglass, and plastic. The sharp threads draw material together and ensure a secure hold. The self-drilling point enables it to drill its own hole in thin sheet metal, heavier gauge metals, and other materials. Kit contains: #8 x 1/2", #8 x 1", and #8 x 1-1/2" truss-head lath screws, as well as #8 x 1/2", #8 x 1", and #8 x 1-1/2" hex washer-head lath screws.