Definition of locknut in English:


Syllabification: lock·nut
Pronunciation: /ˈläkˌnət


  • 1A nut screwed down on another to keep it tight.
    More example sentences
    • Such devices include means to inspect cables and anchorages, locknuts, or grub screws for cross arms, pivots, etc.
    • The transformer will be equipped with a sleeve and a locknut for connecting it to the junction box securely.
    • With titanium bolts, the locknuts are plated with rhodium or silver to prevent galling and seizing of the nut to the bolt.
  • 1.1A nut designed so that, once tightened, it cannot be accidentally loosened.
    More example sentences
    • Once the drain is correctly in position, tighten the locknut with a wrench.
    • The vertical and horizontal position of the rest can be accurately adjusted by loosening the locknuts and turning the adjustment bolts.
    • Even when fully tightened, the bolts do not extend beyond the nylon locknuts (the bolt ends are level with the nylon; showing no threads at all).

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