Definition of locknut in English:



  • 1A nut screwed down on another to keep it tight.

    • ‘With titanium bolts, the locknuts are plated with rhodium or silver to prevent galling and seizing of the nut to the bolt.’
    • ‘I have placed a dot of paint on the locknut and fork to match up so that mine is centered.’
    • ‘The transformer will be equipped with a sleeve and a locknut for connecting it to the junction box securely.’
    • ‘Next screw down the outer locknut and tighten them against each other just like on the other side.’
    • ‘For the record, these new locknuts really do address the past concerns, and it was a snap disassembling the unit.’
    • ‘This rider should confirm that his rear hub measures at least 126 mm between the locknuts (you never know).’
    • ‘Such devices include means to inspect cables and anchorages, locknuts, or grub screws for cross arms, pivots, etc.’
    1. 1.1A nut designed so that, once tightened, it cannot be accidentally loosened.
      • ‘The vertical and horizontal position of the rest can be accurately adjusted by loosening the locknuts and turning the adjustment bolts.’
      • ‘Once the drain is correctly in position, tighten the locknut with a wrench.’
      • ‘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).’