• synonyms


  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.
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Origin of setscrew

First recorded in 1850–55; set + screw
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for setscrew

Historical Examples

  • The blank wheel should be keyed on the shaft or securely fastened with a setscrew.

    The Boy Mechanic, Book 2


British Dictionary definitions for setscrew


  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
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012