• Designed for use on wood-frame, metal-clad doors using a 2x4 or 2x6 frame with Stanley"s 105270, 105676, 105213, and 105726 box rail • Includes two washers, four hex nuts, and two end caps per pair • Made of durable one-piece, precision-formed steel • Offers self-lubricating Delrin bearings • The 1/2 offset bolt adjusts both vertically and laterally from inside door • Connecting bolt threaded 7 adjusted laterally 1 by turning offset bolt for desired clearance • Can hold 450 lbs • per pair • 9 bolt • Boxed • 105676 105213 and 105726 box rail • Includes two washers