noun
spike; dog nail
A large, heavy nail used in timber framing and traditional carpentry; the head often resembles a dog's head or the nail is driven deep like a dog's tooth.
大工は梁を固定するために犬釘を使った。
The carpenter used dog nails to secure the beam.
この古い家の柱には、太い犬釘が打ち込まれている。
Thick dog nails are driven into the pillars of this old house.