National Hardware N350-769 Spring Hinge, 3-1/2 in L x 3-1/2 in W Dimensions, Steel, Oil-Rubbed Bronze, 30 lb

National Hardware Spring Hinge, 30 lb Weight, Number of Mounting Holes: 8, Steel, Oil-Rubbed Bronze, Dimensions: 3-1/2 in L x 3-1/2 in W, Suitable for: Hinge Cutout and Fire Doors Up to 3 ft x 7 ft

• Closing speed is adjustable
• Closing speed is adjustable
• Tension is adjustable
• Square corners
• Automatically closes doors
• Fully adjustable with wrench provided
• Lifespan warranty against defects in material and workmanship
• Easy to install
• Use anti-friction hinges with spring hinges for best spring performance
• Cold-rolled steel hinges with a decorative-plated finish have the added protection of baked-on lacquer, which helps retain the original beauty under ordinary condition