Cast iron boat dock cleat 1.galvanized finish 2.two holes for required fasteners 3.size:4",6",8",10",12",15",18 ... ",24" Cast iron boat dock cleat with galvanized finish. Two holes ... . 92HX: 3.5", 4", 5", 6", 8", 10", 12", 14", 18" 90HX: 8", 10", 12", 15", 18", 24"2.Hot dipped galvanized ...