雄おねじ

noun

male screw; external thread

A screw or bolt with threads on the outside; contrasts with 雌ねじ (female screw).

See also: 雌ねじ

• この部ぶ品ひんには雄おねじが切きってある。

  This part has a male thread cut into it.

• 雄おねじと雌めねじをしっかり締しめてください。

  Please tighten the male and female screws firmly.