Inflatable Boat & Marine USA Bimini Top Deck Hinge - Fitting/Hardware- Removable Pin Stainless Steel - 2 Each (Pair) Precision cast 316 Marine Grade Stainless Steel Maximum corrosion resistance and durability in the saltwater environment. Polished to a beautiful, mirror-like finish. Fits bimini Eye End Caps with 5/16" end thickness. See additional details in product description below.