lock nut
Americannoun
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a nut specially constructed to prevent its coming loose, usually having a means of providing extra friction between itself and the screw.
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Also called jam nut. a thin supplementary nut screwed down upon a regular nut to prevent its loosening.
Etymology
Origin of lock nut
First recorded in 1860–65
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The lock nut survived the last check, so back it goes on the bearing again.
From New York Times ● May 5, 2010
The law, by implication, also called for a strong, experienced administrator, and Quesada's whole life and personality fit the law like a made-to-order lock nut.
From Time Magazine Archive
Be sure to check the manufacturer's specified torque specs to torque down the axle nut and lock nut appropriately.
From Time Magazine Archive
With a 12mm wrench, break the 12mm lock nut loose by turning it counterclockwise.
From Time Magazine Archive
Then a coupling is cut while screwed on a pipe, so that a lock nut about 1⁄2 inch wide is made.
From Elements of Plumbing by Samuel Edward Dibble
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
