The No 3402BF self-closing hinge is operated by an internal spring. The tension is adjustable. It is generally specified for industrial, commercial, and residential conditions which require doors to be self-closing. The hinge is UL listed for fire door applications. Please provide door weight, height, and thickness when ordering. The hinge is shown with ball finials; button tips are also available. Please speak with a Nanz associate for information on available finishes.