Nut

A small flat piece of metal or other material, typically square or hexagonal, with a threaded hole through it for screwing on to a bolt as a fastener

n bot.бот. узбекскийyongʻoqрусскийорех

узбекскийmufta (ikki valni, oʻqni ulovchi qism yoki mexanizmрусскиймуфта