castle nut
castle nut · castle nuts
A nut with rounded extensions projecting past the nut's openingA nut with rounded extensions projecting past the nut's opening. A cotter pin is inserted through a hole in the bolt and bent around the castle nut's projections to lock the nut in place.
Meaning
1 sensesA nut with rounded extensions projecting past the nut's opening. A cotter pin is inserted through a hole in the bolt and bent around the castle nut's projections to lock the nut in place.
Origin
The projections resemble the turrets of a castle.The projections resemble the turrets of a castle.
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Forms
plural: castle nuts| Singular | castle nut |
|---|---|
| Plural | castle nuts |
regular