Found 2 items, similar to locknut.
English → English (WordNet) Definition: locknut locknut n : supplementary nut that is screwed down on a primary nut to prevent it from loosening [syn: safety nut]
English → English (gcide) Definition: locknut locknut \locknut\, lock nut \lock nut\n. a supplementary nut that is screwed down on a primary nut to prevent it from loosening; a check nut. [WordNet 1.5]