Seachoice Cleat Open Base 6" Black Ea 50-30821 by Seachoice $4.42 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Cleat Open Base Each #50-30821 SIZE: 6" Durable non-corrosive. High impact black plastic w/open base. Fasteners sold separate. Center to Center: 1-9/16" Line Size: Up To 7/16"