Type F machine screws, Flat, Steel black phosphate finish, 4"

Star drive flat head thread cutting screw type F

Star drive flat head type F (trailer screws)

Type F screws have a thread cutting tip. Flat heads are countersunk (cone shaped under the head) with a flat top. Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping).

See also

Metric machine screw

Metric 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.