| 摘要 |
Disclosed is an expansible fastening device (10) for placement in a hol e preformed in a base member for use in attaching a component part to the base using a conventional nut (24) and bolt (26). The fastening device includes a fastener body (12) having two body sections (28a and 28b). The body sections when positioned together form a central cavity (30) within the fastener body whic h encloses and retains the nut and a wedge (14). Each longitudinal section includes a fin (16) which extends longitudinally and projects radially outward from the central region of each body section. Further, each body section includes primary and secondary teeth (18 and 20) which extend circumferentially about the out er surface of the sections. In operation the bolt is engaged with the nut and rotated, pushing the wedge from the fastening device. As the wedge is driven away fro m the nut, the teeth and Pins are driven into the base member.
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