| 摘要 |
<p>A fastener assembly (17) comprises an elongate fastener (19), and a support collar (25) mounted on the fastener, the support collar shaped such that it has profiles on opposite sides of the fastener that are asymmetric with respect to each other. The asymmetry may be an asymmetry in the number, shape, position or size of recesses on two opposite sides of the fastener. A plurality of fastener assemblies may be provided as a fastener strip (15), in which each support collar is joined to one or two neighbouring support collars in a strip.</p> |
