setscrew
noun
set·screw
ˈset-ˌskrü 
1
: a screw screwed through one part tightly upon or into another part to prevent relative movement
2
: a screw for regulating a valve opening or a spring tension
Examples of setscrew in a Sentence
Recent Examples on the Web
Tighten the setscrew with a 5⁄32-inch Allen wrench.
—
Joseph Truini, Popular Mechanics, 16 Jan. 2021
Most motors and machines, including anything with belts and pulleys, have tiny setscrews that only accept Allen wrenches.
—Joseph Truini, Popular Mechanics, 25 Apr. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Joseph Truini, Popular Mechanics, 16 Jan. 2021
Most motors and machines, including anything with belts and pulleys, have tiny setscrews that only accept Allen wrenches.
—Joseph Truini, Popular Mechanics, 25 Apr. 2020
Cite this Entry
“Setscrew.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/setscrew. Accessed 4 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share