RACO 4 in. Square Box, Welded, 2-1/8 in. Deep with 1/2 in. and TKO Knockouts, and FM Bracket (25-Pack)

Square boxes are manufactured from durable pre-galvanized steel, and are designed to house and protect electrical wiring, switches, receptacles, and to support light fixtures. All steel boxes are UL listed and acceptable for use in 2-hour fire rated walls and ceilings. 8-32 cover mounting screws are assembled.