Round

US Fasteners

Round head wood screw

Wood screws

Screws with a smooth shank and tapered point for use in wood.
One way round head sheet metal screws

Sheet metal screws

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

Machine screws

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

Assortments

Fastener assortments in U.S. Sizes.