BG Nexus Metal Brushed Steel Double Master Telephone Socket NBSBTM2BBG Nexus Metal Brushed Steel Double Master Telephone Socket NBSBTM2B The NBSBTM2B is a double master telephone socket from the BG Nexus Metal range, finished in brushed steel and built using BG Nexus Euro Modular system. This range of switches and sockets has been designed with a modern, slim profile and has a lightly lacquered surface to reduce fingerprint marks. The BG Nexus Metal range of switches and sockets comes with colour coded screws and has