National Hardware 3-1/2" Oil Rubbed Bronze 5/8" Radius Spring Door Hinge is a durable and reliable door hinge designed to fit standard hinge cutouts. Made from cold-rolled steel, this hinge adjustable closing speed and tension, allowing you to customize its performance to your needs. It features a 5/8 inch radius and is UL for fire doors, ensuring safety and compliance. The oil rubbed bronze finish adds a stylish and classic look to your door hardware, making it both functional and attractive. Model Number: N350-884