🔨DESIGNED FOR PERFORMANCE-Templated screw hole pattern hinges for doors. Automatic closing Matte Black 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-Full Mortise hinge Matte Black auto closing door hinges is 3 1/2 x 3 1/2 inches and 0.098 inches thickness with 1/4" corners and 6 holes. Adjustable Spring Hinge UL Listed.The self-closing door hinges pack include 3 hinges and free screws. Door hinges are made of high-quality reliable flat iron with a protective Matte Black finish. We recommend 3 hinges for each interior and exterior door. ✅INCLUDES-Instruction manual & free screws for quick and easy installation.Each door hinge contains 6 standard-length screws. Standard screw length upgraded from#9X1 "grub screw, wrench, pin, and instruction manual. 🏠WIDELY APPLICATIONS-Ideal for residential and comercial door self closing hinge Matte Black finish make the door look more modern. Easy to adapt to any decorative style. Fashion door hinges are suitable for offices, kitchens, bathrooms, bedrooms, living rooms, classrooms, bifold door hardware and other interior doors;The durable flat iron is also suitable for all kinds of outdoor buildings such as garages, and so on. 👍AFTER-SALES SERVICE-Matte Black 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. If you have any questions about our hinge, please feel free to contact us. We will fully refund for broken or defective. Adjustable 3 1/2 Inch Spring Hinges 3 Pieces