| 摘要 |
The present invention relates generally to improvements in stud-type fasteners and more particularly to a double-ended type fastener, one extremity of which is provided with sharp crested peripheral protuberances and which carries a volume of heat activatable adhesive. More specifically, the invention incorporates a novel recess in a flange interposed between each end of the fastener and which is adapted to receive adhesive wiped upwardly when the fastener is inserted in a work aperture. |
