Arlington 1-1/2" Steel Octagon Ceiling Box w/ Bracket

Ceiling fan/fixture boxes mount directly to a joist for a super-secure installation. Two styles. Ships ready-to-install. For new work only Product Features No loose parts to misplace, totally self-contained! Combination hex/Phillips head screws for easy installation with power screwdrivers. FBS415S/FBS420S are UL rated: 70 lb fan/fixture; CSA rated: 50 lb fan/fixture Specifications Color: Silver Material(s): Steel Cubic Inches: 14.6 Style: 1-1/2" Box Depth / Mounts on Side of Joist Trade Size: 14.6 cu. in.