locknut
1
6.8
An extra nut screwed onto a main nut to stop it coming loose
- noun
- /ˈlɑkˌnʌt/
- Specialized
:
tuerca de seguridad
- On mountain bikes, be sure to retighten the locknut flush against the brake lever to secure the new setting.
- tighten the locknut
- loosen the locknut
- locknut and cone
Examples
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To remove the wooden handle from the lid, just unscrew the two small locknuts that hold it in place.
-
You gotta use a locknut on that.
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I don't need any locknut.
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All hardware has encapsulated locknuts, further eliminating areas for bacterial and pathogen growth.
Academic text (2005) -
Turn the locknut until the zero on it lines up with the 6 on the rifle barrel.
Synonyms
6.6
A second metal piece that screws onto a bolt to stop it from loosening
is the same concept but uses an alternative technical term
How Secure
Surface Forms
Morphology
Etymology
The word locknut is made from two words, lock ('to fasten or stop something moving') and nut ('a small metal piece that screws onto a bolt'). So a locknut is a nut that 'locks' a main nut in place to stop it coming loose when things shake.