setscrew

American  

[set-skroo] / ˈsɛtˌskru /

noun

1. a screw passing through a threaded hole in a part to tighten the contact of that part with another, as of a collar with the shaft on which it fits.

---

setscrew British  

/ ˈsɛtˌskruː /

noun

1. a screw that fits into the boss or hub of a wheel, coupling, cam, etc, and prevents motion of the part relative to the shaft on which it is mounted

---

Etymology

Origin of setscrew

First recorded in 1850–55; set + screw

Example Sentences

Pump this lever until no more air bubbles escape from the setscrew and only clear fuel is flowing.

From Time Magazine Archive

Instead of the click of a positive detente, I heard the snap of a broken setscrew as the port shift windmilled on its shaft.

From Time Magazine Archive

Loosen this setscrew but do not remove it.

From Time Magazine Archive

The Wrights' piston was typical of the time, with the rings pinned in the grooves to prevent turning and the piston pin locked in the piston with a setscrew.

From The Wright Brothers' Engines and Their Design by Hobbs, Leonard S.

Slip the spider on the armature shaft and secure it solidly with the setscrew so that the shaft will not turn in the spider when truing up the armature core.

From The Boy Mechanic: Volume 1 700 Things for Boys to Do by Popular Mechanics Co.