Screws with large threads for use in sheet metal sometimes also used in plastic, fiberglass, or wood.

Sheet metal screws, Hex washer head, Stainless steel, #12 x 2"

Hex head

Self tapping

Screws with coarse threads and a pointed end for use in sheet metal sometimes also used in plastic, fiberglass, or wood.

Hex washer head self drilling

Self drilling

Screws with coarse threads and a drill point end for use in thicker gauge steel.