noun
round-headed tack
A rare term for a tack with a round head, similar to 太鼓鋲. Likely encountered only in specialized hardware or historical contexts.
See also: 太鼓鋲
この古い家具には鐶甲鋲が使われている。
Round-headed tacks are used in this old piece of furniture.
太鼓鋲 is a more common term for a round-headed tack, while 鐶甲鋲 is a rare synonym.
The term is composed of kanji suggesting a ring (鐶), armor/shell (甲), and tack/rivet (鋲), but the exact derivation is uncertain. It is a rare technical compound.