Box Rail Hanger For Sliding Barn Door Zinc 9-In. Bolt 2-Pack

2-Pack Zinc box rail hanger with 9″ bolt, designed for use on wood frame, metal clad doors using a 2″ x 4″ or 2″ x 6″ frame with national’s 59, 5100, 5103, 5104, 5105, 5110, 5114 or 5116 box rail, includes 2 washers, four hex nuts, & 2 end caps per pair, made of durable 1 piece, precision formed steel, the 1/2″ offset bolt adjusts both vertically & laterally from inside door, connecting bolt threaded 7″ adjusted laterally 1″ by turning offset bolt for desired clearance.