35mm Dual Metal Back BoxQTY = 1Overview - This back box allows two 1 gang face plates to be mounted side by side neatly. Back boxes are used behind face plates, they allow the face plates to be screwed and secured flush to a wall. The back box itself should be screwed into position. Common face plates which may be used with a back box are light switches, plug sockets, modular systems, etc. Different face plates require different depth back boxes, we stock a full selection. Technical SpecStandard UK sized back boxBrass Earth TerminalDimensions - 155mm (W) x 70mm (H) x 35mm (D)Standards - ROHS.