Last Updated
：2025/11/24
castle nut
Noun
Japanese Meaning
凸部（キャッスル状の突起）が備わっており、ボルトの穴に挿入されたコッターピンを突起に沿って曲げることで、ナットの固定に用いられる特殊なナット。
（ plural ）
Quizzes for review
A 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.
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castle nut
Before the test flight, the mechanic secured the landing gear with a castle nut and bent the cotter pin to lock it in place.
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Before the test flight, the mechanic secured the landing gear with a castle nut and bent the cotter pin to lock it in place.
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