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

Sheet metal screws, Slotted hex washer, Stainless steel, 2"

Slotted hex washer head

Self tapping

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

See also

Wood screw

Wood screws

Screws with a smooth shank and tapered point for use in wood.