RF Brand 8” Speaker Tile Bridge is a rust-resistant steel, combination screw/stud support bridge for 8″ round or square loudspeaker assemblies in a drop-tile ceiling grid. Easy “mark & cut,” “square” hole design for fast and efficient installation. Multiple seismic tie-off points are provided. Tinnerman clips provide easy screw threading, quick mount tabs hold the back box in place without screws, and locating tabs provide secure mounting positions in ceiling tiles.