RACO 3-1/2 in. W Steel Metallic Round Cover with 1/2 in. KO in Center, 1-pack

Manufactured from durable pre-galvanized steel. Designed to house and protect electrical wiring, switches, and receptacles. UL listed and acceptable for use in 2-hour fire rated walls. Device mounting holes pre-tapped to accept 6-32 device screws. (except for blank covers).|Key-hole allows for installation of cover without removing the box screws|Includes 1/2 in. knockout|Used to close 3-1/2 in. octagon boxes when used as junction boxes|2-3/4 in. mounting screw centers|One 1/2 in. knockout|Fits RACO model 110