Attwood Marine - Stud Mount Flush Cleat - 4-1/2" - 665127. Recesses flush to the deck for a clean, contemporary look. Stud mount. Cleat recesses into cast body, and is captured with lubricated seals. Durable, cast 316 Stainless Steel construction and simple design assures long-life and dependable operation. Easy Installation. 1/8" stamped backing plate, for decks thicker than 1/2", is standard on all models.. Features:. Size - 4.5". Includes Backing Plate. 316 Stainless Steel Alloy