Socket screws have an allen wrench drive.

Metric socket screws, Zinc plated class 12.9 alloy steel, 1.5mm, 16mm

Socket flat head screw

Socket flat head

Flat heads are countersunk (cone shaped under the head) with a flat top. Allen (hex socket) drive is a six-sided recess for use with an Allen wrench (hex key).

Socket button head screw

Socket button head

Button heads are rounded and low profile. Allen (hex socket) drive is a six-sided recess for use with an Allen wrench (hex key).

See also

Set screw

Metric set screws

Screws with no head and machine threads for use in a tapped hole.

Shoulder bolt

Metric shoulder bolts

Screws with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts.

Connector bolts

Metric connector bolts

Connector bolts have a flat head that sits flush with the surface of the wood, creating a neat finish. Commonly paired with a connector cap or a barrel nut in furniture applications.

Socket product

Socket screws

Screws with an Allen wrench drive.