| 摘要 |
A U-nut type fastener, for forming a vertically stacked or nested array of such fasteners, comprises an an- nular hoop member or retainer ring formed upon a lower arm member of the fastener, and an upstanding sleeve member or internally threaded nut is formed upon an upper arm member of the fastener. When the fasteners are stacked or nested in a vertical array, the annular hoop member or retainer ring of an upper one of the fasteners will engage and be seated upon the sleeve or nut member of a lower one of the fasten- ers. A latch member formed upon a forward end portion of the lower fastener also engages a forward recessed or cut-out region of the upper fastener so as to prevent relative rota- tion of the fasteners within the stacked or nested array as well as to maintain the forward ends of the fasteners verti- cally spaced and parallel, and in a similar manner, a dimple is provided upon a rear end portion of the upper arm member of each fastener for engaging an undersurface portion of an upper fastener so as to maintain rear portions of the fas- teners vertically spaced and parallel.
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