clasp fastenings

Clasp fastenings consist of two parts: one a catchplate or pin located on one board or cover of a book, and the other a hook or ring on the opposing board or cover which catches on the catchplate or pin on the other side. The hook or ring may be attached to the board by means of a clasp strap or a hinge plate.

lukkemekanisme som har til hensikt å holde permene lukket rundt bokblokken