Concealed Hinge, Zamac/Steel Material, Satin Chrome Finish, With Holes, 2 Holes per Leaf, No Ligature , 180 Degrees Range of Motion, Orientation Non Handed, 2 3/8 in Door Leaf Height, 2 3/8 in Frame Leaf Height, 19/32 in Door Leaf Width, 19/32 in Frame Leaf Width, 0.125 in Door Leaf Thickness, 0.125 in Frame Leaf Thickness, 5/64 in Required Door Thickness, Square Corners, Included Hardware, Surface Mount Mounting, Steel Pin Material, Nonremovable Pin Type, ANSI/BHMA 156.1-2006 Standards