These screws are most commonly used on tralier or deck floorboard applications.

These screws have a wide, domed head with a flat underside and a point that can cut new threads in a pre-drilled hole in thicker metal.

These screws have a countersunk head with a flat top surface and a point that can cut new threads in a pre-drilled hole in thicker metal.

These screws have an integral washer at the bottom of the head and a point that can cut new threads in a pre-drilled hole - primarily used with metal,...