Square Boxes and Extension Rings 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 fixture mounting screws are assembled.
- 4 in. Square x 2-1/8 in. deep
- Welded steel construction
- Supplied with ten (10) 1/2 in. and six (6) 1/2-3/4 in. TKO knockouts
- Combination Phillips/slotted screw heads
- 30.3 cu. in. capacity
- Raised ground screw feature eliminates interference in surface mounting applications
- Note: product may vary by store