Button attaching fastener

摘要

A button attaching fastener consisting of a button cap (1) and an attachment plug (10). The button cap (1) has centrally in its rear surface a socket (5), and the attachment plug (10) has on one end a flange (11) fitted in the socket (5) with a clench portion (6) provided along an outer periphery of the socket (5) clenched over the flange (11) through its substantially entire surface. The clench portion (6) has on its outer surface a plurality of rotation-preventing projections (7) extending radially outwardly from the base (14) of the flange (11). The rotation-preventing projections (7) serve to prevent the fastener from rotating on a piece of fabric, as of clothing, and also to increase the pulling strength of the attachment plug (10).