| 摘要 |
A fastener comprises a stud-like member (10) having an external threaded portion (18) and a nut-like member (20) having an internal threaded portion (22, 22) which is so configured that, with the nut-like member (20) at a first inclination relative to the stud-like member (10), the internal threaded portion of the nut-like member can be slid along the stud-like member whereas, with the nut-like member (20) at a second inclination relative to the stud-like member (10), the internal threaded portion of the nut-like member can be brought into threaded engagement with the stud-like member, the nut-like member preferably having a generally annular body (20) surrounding a bore (24), with offset and opposed parts (26, 28) of the body missing so that the bore has convergent-divergent parts, and with offset and opposed projections (22, 22) on the convergent-divergent parts of the bore forming the internal threaded portion.
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