Attwood Stainless Steel Flush Mount Marine CleatsGreat new Flush Cleat design from the leader in stainless steel hardware! This cleat recesses flush to the deck for a clean, contemporary look at an affordable price. Corrosion-resistant 316 stainless steel construction (patented design). Water-resistant cleat recesses into cast body and is captured with lubricated seals. An optional drainage receptacle mounts below the cleat to drain off water. Design Refinements; Easy to operatesimply pull up the cleat from its body; Standard four-hole mount; Easy Installation; Countersunk model mounted with four #10 screws , 4-1/2"-long; 1/4" screws, 6" and 8"-long; 5/16" screws.; Hole pattern is similar to competitive models; 1/8" stamped backing plate, for decks thicker than 1/2", is standard on all models (optional cast backing plate available for thin decks).; Engineered To Last; Water-resistant cleat recesses into cast body and is captured with rubber seals and ball detents; Optional plastic drainage receptacle mounts under cleat to drain off water in 3/8" I.D. hose (not included); Durablecast stainless steel construction and simple design assures long-life and dependable operation; THIS CLEAT IS MOUNTED WITH 4 SCREWS FROM THE TOPSIDE. NOT STUD MOUNTED FROM BELOW.