Simple Installation: The circular thickened hinge is 64mm in diameter and has 7mm positioning holes for accurate installation. Stainless Steel: Made of 316 stainless steel material, with high strength, wear resistance and durability. Mirror Polishing: The surface is treated with mirror polishing, which has strong corrosion resistance in seawater environment. For Marine Industry: Used for covers, hatches, cabins and doors in the marine industry, but also for domestic use. Easy Replacement: With reasonable structure and high reliability, which can directly replace worn or damaged door hinges. Item Type: Round Hinge Material: 316 stainless steel Uses: Used for covers, hatches, cabins and doors in the shipbuilding industry, and also for household use Hinge Diameter: Approx. 64mm / 2.5in Hinge Thickness: Approx. 4mm / 0.16in Positioning Hole Diameter: Approx. 7mm / 0.28in 1 x Round Hinge