RACO 4 in. Round Ceiling Rated Box 2-1/8 in. Deep with Five 1/2 in. KO's

Ceiling support boxes are designed for ceiling fans and ceiling or wall light fixture support. To be directly mounted to a joist. #10-32 ceiling fan and #8-32 provision for fixture mounting screws. Easy installation, up-front ground screw.|No protruding ground screw or fan mounting screws|Metal protection plate eliminates debris or damage to wiring|INSIDER nonmetallic sheathed cable connector included|70 lbs. ceiling fan, 150 lbs. fixture support|Easy-to-follow instructions and mounting hardware included|2-1/8 in. deep|1/2 in. side knockout