皿さらねじ

noun

countersunk screw

A screw with a flat or conical head designed to sit flush with or below the surface of the material. Common in woodworking and metal assembly.

• この部ぶ分ぶんには皿さらねじを使つかって、表ひょう面めんが平たいらになるようにしてください。

  Please use countersunk screws for this part so that the surface becomes flat.

• 皿さらねじは、木もく材ざい同どう士しをきれいに接せつ合ごうするのに便べん利りだ。

  Countersunk screws are convenient for neatly joining pieces of wood together.