Check nut

(Mech.)	a secondary nut, screwing down upon the primary nut to secure it.
	a nut which is screwed up tightly against another nut on the same bolt or screw, in order to prevent accidental unscrewing of the first nut.

See also: Check, Nut

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.

Mentioned in

Jam nut
Pinching nut

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.