National Hardware N350-801 Spring Hinge Cold Rolled Steel Satin Nickel 37 lb

National Hardware Spring Hinge, 37 lb Weight, Number of Mounting Holes: 8, Cold Rolled Steel, Satin Nickel, Dimensions: 4 in L x 4 in W, Suitable for: Hinge Cutout and Fire Doors Up to 3 ft x 7 ft