Solid Brass Collection Deltana Square Corner 4" x 4" Solid Brass Plain Bearing Mortise Hinge - Pair Get the contemporary style youre searching for with these durable solid brass hinges from Deltana. You've earned the right to have the best door hardware you can get and now you don't have to look any further to get it. Features: Sold as Pair Plain Bearing Hinge Residential Strength Removable Pin: Yes Wood Screws Included Square Corners Traditional / Classic Theme Zig Zag Hole Pattern Plain 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 - Solid Brass: Solid brass is made from copper and zinc and is prized for its resilience, durability, and beauty. Solid brass can always be polished back to its original sheen and is highly resistant to rusting. Solid brass is often available in finishes that other hinge materials are not. Mounting: The standard corners for mortised door hinges are 1/4" radius, 5/8" 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 Height 4 Inch Width Made from Solid Brass Mount: Mortise Gauge: 0.085" (Thickness of Hinge Brass) 5 Knuckles 8 Screw holes Deltana is the architectural hardware manufacturer with a proven record for exceptional service and quality. Deltana inventories the countrys largest selection of architectural, lighting, and door hardware in over nine fine finishes made from solid brass, zinc, aluminum, steel and stainless steel.