lock nut
or lock·nut
noun Machinery.
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
First recorded in 1860–65
Words nearby lock nut
loci,
lock,
lock bay,
lock horns,
lock in,
lock nut,
lock on to,
lock out,
lock rail,
lock seam,
lock stitch
Example sentences from the Web for lock nut
The lock-nut D holds the screw securely once the pressure is adjusted.
Practical Lithography |Alfred Seymour