#8 x 3/4", 18-8, Slotted oval head, US

US Fasteners

Slotted oval head

Wood screws

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

Sheet metal screws

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

Machine screws

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