Screw

Fastener with a helical ridge.

bolt fastener

A screw is a type of fastener typically made of metal, consisting of a helical ridge wrapped around a cylindrical or conical shaft.

/skruː/

From Old English scrūwa, from Proto-West Germanic *skrūfa, of uncertain origin.

fastener bolt

fastener machine part

wood screw machine screw drywall screw

head shank threads

assembly machine

manufactured object mechanical component