【DESIGNED FOR PERFORMANCE】Automatic closing satin nickel door hinges are smoothly operated by plain-bearing construction. Bearing adopts a seamless design easy to adjust for the perfect tension, robust durable design makes these interior door hinges long-lasting.You can beat the nail with a hammer to remove the riveted pin. 【SPECIFICATION SIZE】Self closing door closer hinge is 4 x 4 inches and 0.097 inches thickness with square corners and 8 holes. Adjustable Spring Hinge UL Listed. The self closing door hinges pack include 2 hinges and 16 screws. 4 inch spring hinges are made of high-quality reliable flat iron with a protective satin nickel finish. We recommend 3 self close door hinges for each interior and exterior door. 【2 PACK SPRING HINGES INCLUDES】Instruction manual & screws for quick and easy installation. Each self closing spring hinges contains 8 standard-length screws. Standard screw length upgraded from#9X1 "grub screw, wrench, pin, and instruction manual. 【WIDELY APPLICATIONS】Ideal for residential and commercial door self closing hinge Satin Nickel finish make the door look more modern. Easy to adapt to any decorative style. Fashion auto close door hinges are suitable for store, coffee shop, offices, kitchens, bathrooms, bedrooms, living rooms, classrooms and so on. The sturdy flat iron is also suitable for all kinds of outdoor buildings such as garages, and so on. 【CERTIFIED QUALITY】4 inch Satin Nickel spring door hinges have UL Listed certificate. We do care about your life quality. The hinge central shaft includes the damping oil feature which is built to reduce metal-to-metal friction and provides quiet open-door and close-door experiences. 4 inch Satin Nickel Spring Hinges Door Closer Hinge Square Corner for Commercial Grade Auto Self-Closing UL Listed, 2 Pieces