castellated nut

短语

词形变化

castellated nuts 复数 castellated nuts

释义与例句

n.
  1. 1.

    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.

词源

Physically descriptive via a metaphor; called thus because the slots in the nut — the castellations — have a fancied resemblance to the battlements of a castle.

来源：wiktionary