| 摘要 |
<p>The fastener disclosed by the invention comprises a filament, a head provided to one end of the filament, and a socket provided to the other end of the filament, these parts being integrally formed of synthetic resin, the head having a groove extending in the direction of its axis and a rib formed in the groove, the head also having a skirt on the head around the groove and flaring away from the front end of the head, the skirt being interrupted at one part by the groove, the socket having an insertion hole in which an annular flange is provided for engagement with the skirt.</p> |
