N.H N830-445 Surface Mount Door Hinge 3-1/2'', Matte Black 3-ct (3-PACK) Finish: Matte Color: Black Corner Shape: Square Radius: 1/4 inch Military-grade superior bearing with 5 times strength of steel for high-quality performance Outlasts competition by three times, 30 years noise-free Surface-mounted application for easy DIY installation Height: 3-1/2" Width: 3-1/2" Mounting Type: Mortise Gauge: 0.125 Number of Knuckles: 3 Number of Screw Holes: 6 Quantity: 3 Features: Includes three (3) hinges in each order Features square corners National Hardware's squeak-guard? hinges enables doors to pivot on one edge as they silently open and close Constructed with (6) screw holes in an arc arrangement for maximum mounting strength Packaged with mounting hardware for simple, out-of-the-box installation Military-grade superior bearing with 5 times strength of steel for high-quality performance Constructed of high quality materials for durability and dependability Features a removable pin, allowing for easy door removal without having to uninstall the hinges Tested for residential strength applications and is ideal for your home