Advertisement

Advertisement

lock nut

or locknut

noun

, Machinery.
  1. a nut specially constructed to prevent its coming loose, usually having a means of providing extra friction between itself and the screw.
  2. Also called jam nut. a thin supplementary nut screwed down upon a regular nut to prevent its loosening.


Discover More

Word History and Origins

Origin of lock nut1

First recorded in 1860–65
Discover More

Example Sentences

This collar is threaded upon c and is locked in position by a ring lock nut j′.

To adjust: Loosen lock nut "A," remove clevis pin "C" and turn yoke "B" to obtain proper length.

Loosen eccentric lock nut "A" and turn eccentric "B" in the direction the wheel rotates when the car is moving forward until the feeler is held snugly between the drum and the lining.

Insert clevis pin and tighten lock nut "A."

Hold the eccentric in this position and tighten lock nut "A."

Advertisement

Advertisement

Advertisement

Advertisement


lockjawlock on to