SNAPHEAD
Source: 567
Snap″head′ (?), n. A hemispherical or rounded head to a rivet or bolt; also, a swaging tool with a cavity in its face for forming such a rounded head.
Source: 567
Snap″head′ (?), n. A hemispherical or rounded head to a rivet or bolt; also, a swaging tool with a cavity in its face for forming such a rounded head.