National Hardware® N174-268 Box Rail Hanger with 9" Bolt, Zinc PlatedDesigned for use with box rail on wood frame or metal clad doors using a 2"x4" or 2"x6" frame. For use with #59, #5100, #5103, #5104, #5105, #5110, #5114 or #5116 box rail. Packed with two washers, four hex nuts, and two end caps per pair. Durable one piece, precision formed steel. Comes with self lubricating Delrin bearings. The 1 2" offset bolt adjusts both vertically and laterally from inside door. Connecting bolt threaded 7" adjusts laterally 1"