Used to electrically isolate the cable tray from the accessory. 2 x BB933 nylon flat washer along with 2 x BB973 nylon shoulder washers, allows the j-bolts on the BA5 Series sidewall brackets to be electrically isolated. To electrically isolate the CCX Centre Support bracket, use 1 x BB933 nylon flat washer and 1 x BB981 nylon shoulder washer. |