(Translated by https://www.hiragana.jp/)
pilot nut - Wiktionary, the free dictionary
Wiktionary

pilot nut

English

edit

Noun

edit

pilot nut (plural pilot nuts)

  1. (bridge building) A conical nut applied temporarily to the threaded end of a pin, to protect the thread and guide the pin when it is driven into a hole.
Retrieved from "https://en.wiktionary.org/w/index.php?title=pilot_nut&oldid=36268945"