In the above embodiment, the second leg distal end may be shaped to directly enter the slot, the distal end being aligned in a direction parallel and offset relative to the longitudinal cable axis. Also in the above embodiment, the first leg distal end may be shaped as an inverted U-shaped hook, the U-shaped hook being perpendicular and offset relative to the longitudinal cable axis and at least part of the post wall beneath the slot fits within the U-shaped hook once the hanger reaches the final seated position. The end shapes noted above are provided by way of example only and should not be seen as limiting.