#12-24 x 1-1/4", US

US Fasteners

Sheet metal screw

Sheet metal screws

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

Machine screws

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

Socket screws

Screws with an Allen wrench drive.