Webster's Revised Unabridged Dictionary · 1913

locknut

locknut , noun

a supplementary nut that is screwed down on a primary nut to prevent it from loosening; a check nut.

Also: lock nut

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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