National Hardware Narrow Hinge, 7 lb Weight, Door Leaf Width: 1-1/2 in, Door Leaf Thickness: 0.045 in, Frame Leaf Width: 1-1/2 in, Frame Leaf Thickness: 0.045 in, Number of Knuckles: 3, Pin Type: Fast Spun, Pin Diameter: 0.106 in, Orientation Type: Left, Right, Mortise Mounting, Number of Mounting Holes: 4, Mounting Hole Diameter: 0.197 in, Hole Spacing: 1.046 in, Brass/Cold Rolled Steel, Brass, Dimensions: 1-3/8 in L x 1-1/2 in W