National Hardware Zinc-Plated Box Rail Door Strap Barn Door Hanger is designed specifically for wood frame sliding doors that are between 1-1/2 inches and 2 inches thick. This product features a flexible design with a slot at the top of the door strap, allowing for easy lateral and vertical adjustments to ensure a fit. It includes two end caps and bolts for secure attachment of the door straps. Crafted from durable, one-piece precision-formed steel, it boasts a zinc-plated finish that provides excellent resistance to corrosion. The self-lubricating Delrin bearings and a 5-1/4 inch strap length contribute to smooth and reliable operation. Additionally, the WeatherGuard protection enhances its durability, making it suitable for various environments. Model Number: N168-815