National Hardware 512 Door Butt Hinge, 55 lb Weight, Door Leaf Height: 4 in, Door Leaf Thickness: 0.08 ga, Frame Leaf Height: 4 in, Frame Leaf Thickness: 0.08 ga, Number of Knuckles: 5, Pin Type: Removable, Pin Diameter: 7/16 in, Orientation Type: Left, Reversible, Right, Mortise, Screw Mounting, Number of Mounting Holes: 8, Hole Spacing: 3.31, 3-5/32, 2-1/8 in, Corner Radius: 1/4 in, Steel, Black, Dimensions: 4-5/16 in H x 4 in W, Includes: Fasteners