Sea-Dog Steel & Nylon Hinge Adjustable Angle Stainless. Concave Hinges are designed to rail mount on 1 tubing. Angled Hinges are used for mounting items on slanted surfaces like sloped gunwales. 180 Adjustable Hinge allows universal mounting at almost any angle including vertical mounting. Removable Pin Deck Hinges feature a spring loaded quick release pin for easy top removal. 1/4 or 5/16 pin size. Constructed of corrosion resistant investment cast 316 stainless steel. Installs with two FH fasteners (not included). Specifications for Sea-Dog Stainless Steel & Nylon Hinge Adjustable Angle: Manufacturer: Sea-Dog Color: Silver Package Contents: Sea-Dog Stainless Steel & Nylon Hinge Adjustable Angle Sea-Dog 270260-1: Steel & Nylon Hinge Adjustable Angle Stainless