Screw be an appropriate choice. The left side pedal of a bicycle has a left-hand thread. More generally, screw may mean any helical device, such as a clamp, a micrometer, a ship's propeller, or an Archimedes' screw water pump. There is no universally accepted distinction between a screw and a bolt. A simple distinction that is often true, although not always, is that a bolt passes through a substrate and takes a nut on the other side, whereas a screw takes no nut because it threads directly into the substrate (a screw "screws into something", a bolt "bolts several things together").
The Golden Screw by Larry Wells (piano) and Fergus Hambleton, (guitar.) The play was directed by David Eliscu, produced by Paul Stoudt, and the cast included: Tom Sankey, Janet Day, Patrick Sullivan and Murray Paskin. The musicians were Tom Sankey (autoharp), Jack Hopper (guitar) and members of The Inner Sanctum: Kevin Michael (lead guitar), Gerry Michael (drums), Vince Taggart (rhythm guitar). The script was published as "The Golden Screw, Or That's Your Thing, Baby" (1968). The Golden Screw The Golden Screw was an Off-Off-Broadway folk rock musical written and performed by Tom Sankey which premiered at the Theatre Genesis in September 1966. It