Main features: | Flush-mounted, for hollow walls Cover mounting with screws 4 Mounting screws, 2 special screws with holders to fastening to the wall - included | Flush-mounted, serial, deep Class V0 850 °C flammability index 4 fixing points | Flush-mounted, deep, for hollow walls, with flexible membranes flammability index : 850 °C 2 fixing points 2 Mounting screws, 2 special screws with holders to fastening to the wall - included |