National Hardware N830-322 Door Hinge, 3-1/2 in H Frame Leaf, Steel, Polished Brass, Non-Rising, Removable Pin, MortiseNational Hardware Door Hinge, 50 lb Weight, Door Leaf Height: 3 1 2 in, Frame Leaf Height: 3 1 2 in, Pin Type: Non Rising, Removable, Full Mortise Mounting, Number of Mounting Holes: 6, Corner Radius: 5 8 in, Steel, Polished Brass, Dimensions: 3 1 2 in L x 3 1 2 in W, Includes: (5) Knuckles, Screws Unit: CD 3 UPC: 886780007688 Model Number: N830 322