| 摘要 |
A mounting body fits onto the top of the post (14), including a pair of lateral connecting formations (10a,b) with apertures which define a right-angled corner. A locking connector (20) is provided to cooperate with the apertures to secure the mounting body against the upper end of the post. The locking body may be inserted in the apertures in a number of different orientations, defined by a series of cut-outs (30-34) which form the aperture walls. The end portions (24) of the locking body are rectangular in cross-section, such that they are freely insertable into the apertures but secured against the cut-out surfaces by rotation of the locking body.
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