#12 x 3/4", Steel, US, Flat

US Fasteners

Flat head wood screw

Wood screws

Screws with a smooth shank and tapered point for use in wood.
Sheet metal screw phillips flat head

Sheet metal screws

Screws with large threads for use in sheet metal sometimes also used in plastic, fiberglass, or wood.
Machine screws phillips flat head

Machine screws

Screws with machine threads for use with a nut or in a tapped hole.