Mechanical Closers and Accessories Surface CloserNorton Surface Closers provide smooth constant control of the door through its full opening and closing cycle. Norton offers a complete range of surface closers designed to meet virtually any... Cam Action CloserCam action door closers are designed to provide higher efficiency than a rack and pinion door closer for slide track applications. These door closers offer a much lower opening resistance while... Overhead Concealed CloserOverhead concealed closers are ideal for situations where a closer is needed but concealment in the frame header is required or desired. Holders