Locknut

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From WordNet (r) 2.0 [wn]:



  locknut
       n : supplementary nut that is screwed down on a primary nut to
           prevent it from loosening [syn: {safety nut}]