lock nut
or locknut
a nut specially constructed to prevent its coming loose, usually having a means of providing extra friction between itself and the screw.
Also called jam nut. a thin supplementary nut screwed down upon a regular nut to prevent its loosening.
Origin of lock nut
1Words Nearby lock nut
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use lock nut in a sentence
When this adjustment is secured the lock nut is screwed in place so the needle valve will keep the adjustment.
Aviation Engines | Victor Wilfred PagA lock nut (H), which has corresponding projections (IJ) is slipped over the post as shown at , and is given a quarter turn.
The Automobile Storage Battery | O. A. WitteThen a coupling is cut while screwed on a pipe, so that a lock nut about 1⁄2 inch wide is made.
Elements of Plumbing | Samuel DibbleA lock nut, O, should be provided for this screw so that it will remain in adjustment.
The Boy Mechanic, Book 2 | VariousThe second nut is technically known as a “jam nut,” or “lock nut.”
The Scientific American Boy | A. Russell (Alexander Russell) Bond
British Dictionary definitions for locknut
/ (ˈlɒkˌnʌt) /
a supplementary nut screwed down upon a primary nut to prevent it from shaking loose
a threaded nut having a feature, such as a nylon insert, to prevent it from shaking loose
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
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