Designed for use with a box rail on wood-frame sliding doors of 1-1/2" to 2" thick, this National Hardware box rail hanger is ideal for farm and utility applications. The tough, one-piece steel body has vertical and lateral adjustments that can be controlled from outside the building, and operates with a working load of up to 225 lb. per hanger. Packaging: Boxed - 1 hanger per package | HILLMAN 5041 Box Rail Hanger