20" Straight Trolling Motor PlateThis trolling motor mounting plate is manufactured using 6061 T6 aluminum, which is primed, and powder-coated with added UV protection for a high-quality and durable product. The tapped holes in the brackets are clean and free of powder coat, as well as gaged for accuracy and consistency for ease of bolt engagement. Sea Bracket&';s manufacturing process is so reliable that the bracket can be used universally for both port and starboard installation.1/2" 6061 aluminum (compatible with Rhodan QRB, Minn Kota RTA-54, and RTA-62).Specifications:Plate Dimensions (inches): 20" x 8" x A 1/2"Suggested Hardware: 1/4-20 tapered Phillips machine screws, fender washers, backing plates, and locknuts 316 stainless steel is ideal for corrosion prevention Mounting hardware that comes with the Rhodan quick-release bracket or mounting hardware that comes with the Minn Kota RTA-54/ RTA-62