Southwire 56112-UPC Pan Box, 4 in W, 3/4 in D, 2-Knockout, Steel, Silver, Galvanized

3-1/2 in round 3/4 in D pan boxes with two 1/2 in knockouts are used to mount ceiling and wall lighting fixtures when a shallow depth box is required. Their versatile combination head #8-32 screws can securely fasten fixtures to electrical junction boxes using a slotted Phillips or Robertson head screw driver.