ASTOUND Spring Hinge, Automatic Self Closing Door Hinges Self Closing Hinge  (Silver Pack of 1)

Self-closing Door Hinges: Do you often feel like you left the door open? Forget to close the door when your child leaves the house? It's not convenient to close the door when you are carrying something? With self-closing door hinges, you no longer have to worry about these problems, the door will automatically close behind you.Stainless Steel Door Hinge: Self closing door hinge is made of 304 stainless steel, built-in spring for automatic closing, the surface has brushed treatment and black plating treatment, very rust-resistant, corrosion-resistant, high-temperature resistance, a single hinge can support at least 9.2 lbs (35 kg) / 77 pounds, these high-performance hinges are made for long-term use.(90° Positioning State) When the door opening angle is less than 90 degrees and there is no resistance at this time, the door will automatically close slowly. When the door is opened more than 90 degrees, it will be fixed by the hidden steel ball to form a positioning.(4 inch Hinge Application) Self-closing door hinges are suitable for apartments, hotels, offices, hospitals, old schools, dormitories, living quarters, companies, kindergartens, nurseries, corporations, police offices/stations, stores, classrooms, libraries, utility rooms, laundry rooms, storage rooms, powder assembly rooms, rooms, depots, etc. These durable hinges are ideal for heavy entrance doors or doors that are frequently used residential and residential Commercial properties.Passed Eu standard with nearly 200,000 tests. Passed a series of certifications such as fire test, overload test, static load deflection test, and fatigue test. Suitable for exterior or interior doors. Designed to be installed on any left-hand operated or right-hand operated door.