Covers have captive stainless steel screws to speed installation, prevents loss of screwsCover tightens on largest perimeter of gasket and fits snugly against portion of gasket that wraps around ridge top of box
Emerson Electric Appleton® FSK-3TS Weatherproof Device Box Cover, 4-9/16 in L x 6-7/16 in W, Tumbler/Toggle Flush Switch Cover, Steel