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 cover mounting screws are assembled.
- 4 in. sq. x 1-1/2 in. deep
- Welded steel construction with "FS" bracket for wood and metal studs
- "L" clamps provided for non-metallic sheathed cable (NMSC)
- Combination Phillips/slotted screw heads
- 21.0 cu. in. capacity
- Note: product may vary by store