Simply screws to the ceiling to suspend the cable tray. Very popular for the time saved during installation, no threaded rod to cut and multiple nuts and bolts to work with. Any drop length (B) can be made, please specify your requirement. Fasteners sold separately (BB200 5/16" spring nut, BB210 5/16" bolt, BB220 5/16" flat washer). If electrical isolation is required, requires 2 - BB968 nylon shoulder washers and 2 - BB926 nylon flat washers. |