Solid Brass Collection Deltana Square Corner 5" x 5" Solid Brass Ball Bearing Mortise Hinge - Pair Get the contemporary style you"™re 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 Ball Bearing Hinge Residential Strength Removable Pin: Yes Wood and Machine Screws Included Square Corners Traditional / Classic Theme Arc Hole Pattern Ball Bearing Hinge: Ball bearing hinges are designed to handle the extra stress brought on by high traffic doorways. The greased bearings reduce the rotational friction extending the life of a hinge in heavy use situations. These hinges tend to be more durable than standard, or plain bearing hinges. 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: 5 Inch Height 5 Inch Width Made from Solid Brass Mount: Mortise Gauge: 0.145" (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 country"™s largest selection of architectural, lighting, and door hardware in over nine fine finishes made from solid brass, zinc, aluminum, steel and stainless steel.