| 摘要 |
A one-piece plastic reusable push-in fastener for insertion into an aperture in a workpiece comprising a head portion and a shank portion, the shank portion being integrally formed to one side of the head portion with its longitudinal axis extending away from the head portion and having a particular cross section and a transversely extending fin section intermediate the length of the shank on one side thereof whereby the fin section cooperates with the particular shank cross section to inhibit withdrawal of the fastener from a particular workpiece aperture and to centrally locate the longitudinal axis of the shank with the central axis of the aperture by forcing the periphery of the shank cross section against the inner wall of the workpiece aperture.
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