Steel Collection Deltana 5/8 in. Radius Corner 4 in. x 4 in. Steel Plain Bearing Mortise Hinge – PairAn aesthetic gem, Deltana steel hinges provide you with the durability and strength you can depend on in your home or business. Beautiful transitional styling ensures a match with any dcor.Features:Sold as PairPlain Bearing HingeResidential StrengthRemovable Pin: YesWood Screws Included5/8 in. Radius CornersTraditional / Classic ThemeZig Zag Hole PatternPlain Bearing Hinge: Plain bearing hinges feature knuckles that are machined to a smooth surface, allowing them to move against one another without bearings. Plain bearing hinges are not recommended for heavy use on high traffic entrance ways, but meet the need of a standard residential door.Material – Steel: Steel is cheap strong and durable making it a favorite for hinges of all types. Though it is more prone to rusting than solid brass or stainless steel.Mounting: The standard corners for mortised door hinges are 1/4 in. radius, 5/8 in. radius and square corner. It is recommended that three hinges be used on doors up to and including 7.5 feet with one additional hinge for each additional 2.5 feet. Make sure you check your current hinges before making a purchase.Specifications:4 Inch Height4 Inch WidthMade from SteelMount: MortiseGauge: 0.085 in. Thickness of Hinge Steel5 Knuckles8 Screw holes