Sugatsune America Lamp plastic hinge holds doors without secondary support. Holds at 4 positions, 90 degrees each. Light weight and easy to install. Screws not included. Application: Medical equipment, food equipment, automation machine etc. 303 Stainless Steel hinge pin. Polypropylene Cap. Door size maximum 400 millimeters width by 500 millimeters height per pair. Maximum door weight: 2. 6 pounds per pair. RoHS complaint.