五ご寸すん釘くぎ

noun

five-sun nail; long nail; spike

A nail approximately five sun (about 15 cm) in length. Often used in construction or woodworking. The term can also refer to any long nail or spike of similar size.

• 大だい工くは五ご寸すん釘くぎを使つかって梁はりを固こ定ていした。

  The carpenter used five-sun nails to secure the beam.

• この板いたを留とめるには五ご寸すん釘くぎが必ひつ要ようだ。

  You need a long nail to fasten this board.