This sturdy Hopkins Round Mounting Bracket works on 4, 5, and 6 round connectors as well as knockout-style 4-flat connectors and mounts under your vehicle's bumper. Includes mounting hardware and a built-in slot for mounting prewired connectors. • Fits vehicle-side connectors on 4, 5, and 6 Pole Rounds • Slotted bracket for easy prewired harness installation • Mounting hardware included • Meets SAE standards • Black powder-coat finish helps resist corrosion SAE approved Includes mounting hardware | Hopkins Manufacturing Hopkins 4, 5, and 6 Round Mounting Bracket in Black