General description The 4pcs Flat Door Hinge is designed for versatile applications, including use on folding doors, sewing machines, and various furniture pieces. Made from high-quality materials, these hinges ensure durability and smooth operation. Technical specifications Material: Zinc alloy and stainless steel Hinge size: 78 x 29 mm / 3.07 x 1.14 inches Installation hole diameter: 5 mm / 0.19 inches Opening angle: 180 degrees Package includes: 4 hinges, 24 screws Installation Determine the position of the hinges on the table or door. Screw in the provided screws for secure installation. Usage Allows for smooth and quiet movement when opening and closing. Suitable for various applications including desktop computers, sewing machines, windows, doors, folding chairs, and cabinets. Other information Round edge design for safety and aesthetics. After closing, hinges are not exposed, maintaining a clean look. The door gap can be less than 1mm when closed, ideal for folding doors.