Mounting system for suspension points in exhibition hall, has coupling fastenable at C-shaped assembly rail and including screw i.e. hammer screw, with rectangular screw head, lock washer, nut i.e. knurled nut, and ring nut

摘要

The system has a coupling fastenable at a C-shaped assembly rail (3). The coupling includes a screw i.e. hammer screw, with a rectangular screw head (35), a lock washer (37), a nut (39) i.e. knurled nut, and a ring nut (43). The washer includes a recess with edges running parallel to each other, and a bar (53) is provided at the edges. Length of the screw is limited such that a gap is formed between the nuts. The length of the gap is larger than the height of a fuse element (41) e.g. clip element, when the bar is pushed over the head and the nut is rotated along direction of the washer.