| 摘要 |
<p>Traditional nut and bolt fasteners are generally acceptable but will normally be over specified for particular applications. Thus, in situations where weight is important such traditional nut and bolt fasteners are not optimised. By providing a fastener (1, 21) in which splayed arms are created with ridges (5, 6; 25, 26) in respective receptor members (2, 22) and insert arm members (3, 23) it will be understood that multi point stabilised contact points for a nut (4, 24) are provided. Thus, the nut (4, 24) can move along the ridges defining a screw path for tightening of the fastener (1, 21) in use. The engagement between the receptor members (2, 22) and the insert arm members (3, 23) is typically through a slot forked end (10, 30) or a closed slot 810 with the slots presenting the splayed arms perpendicular to each other in a cruciform configuration.</p> |
