noun
rivet; tack; thumbtack; drawing pin; hobnail
Refers to various small metal fasteners: rivets for permanent joining, tacks/thumbtacks for temporary fastening, and hobnails for shoe soles. Context determines the specific type.
この金属板は鋲釘で留めてある。
This metal plate is fastened with rivets.
掲示板に鋲釘でポスターを留めた。
I pinned the poster to the bulletin board with a thumbtack.