D-516; "Rectangular Backing Plate".(1)

The D-516; "Rectangular Backing Plate" can be used with the D-510 & D-515; "Hook & Eye Brackets" or the D-475; "Chain Retainer" as a back up plate on inside of dock section. Made of 3" W. x 5" L. x  12 ga. Th. galvanized sheet metal.

Plus $.40 each shipping.