52c3-upc Fixture Ring, 4 In W, Square, Steel, Silver, Galvanized

The Round Fixture Box Ring are used to mount light fixtures in walls and ceilings. The rings convert a 4in. square box to a 3-1/2in. round opening with 8-32 threaded mounting tabs for lighting retrofit applications. Angled slots on the covers compensate for up to 12? of box misalignment on upright framing members. Additionally, the rings are UL and RoHS compliant. Material: Steel.