Last Updated
：2025/12/07
castellated nut
Noun
Japanese Meaning
キャステレーテッドナット：内部にねじ山がある締結部品で、キャッスティレーション（城壁のような切れ込み）が施され、十字穴に通すピン（例：cotter pin）を保持するための構造を有するナット。
（ plural ）
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A type of nut (internally threaded fastener) with castellations, typically to hold a retaining pin that is passed through a cross-drilled hole, such as a cotter pin.
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castellated nut
Before reassembling the axle, the mechanic secured the castellated nut with a cotter pin to prevent loosening during operation.
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Before reassembling the axle, the mechanic secured the castellated nut with a cotter pin to prevent loosening during operation.
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