Marine BOAT Hatch Hinge Heavy Duty 180 degree Marine Grade 316 Stainless Steel 180 degree flush mount 2.8" x 2.6" Hatch Hinges for boat, RV Constructed of stamped corrosion-resistant 316 stainless steel. Polished to a beautiful, mirror-like finish. Salty Reef Marine Hardware Dependability Trusted by Boaters World Wide and USCG Approved The marine grade hinge is stamped from AISI 316 stainless steel will provide years of service and a bristol shine for the discriminating yachtsman. Salty Reef Marine Hardware is an American company trusted worldwide for its durability and dependability. ONE New Stainless Steel Hatch Hinge w/Warranty, this highly polished stainless steel hatch hinge is investment cast stainless with 2.8" x 2.6". Height above deck 1-1/4". The thickness of the base is 1/4". The thickness of the hinge is 3/8". This process assures you of a long lasting durable hinge. Each hinge comes with stainless pins and circlips for quick easy detachment without tools.