The Truck-Lite 40 Series Round Bracket is the perfect solution for mounting two 4" round lamps in a 4-1/2" hole. This bracket mount is made of steel with a black epoxy paint finish for corrosion resistance. It features a 4-screw bracket mounting type for a strong and secure attachment. This mount is designed to fit two 4" lamps and is perfect for a variety of applications. It also offers durable construction and a corrosion-resistant finish. FleetPride is your First Click in Heavy Duty®.