This tensioning fitting is used for stairways with runs of moderate length. For a clean look, the fitting is assembled inside the post. For assemblies with wooden posts, fender washers are necessary. (See "Replacement Parts".) Combine the classic turnbuckle with the following fittings based on the length of run:
0-25 feet: Combine with the Fixed Stud
26-75 feet: Combine with the Turnbuckle Stud
Over 75 feet: Combine with another Classic Turnbuckle

These turnbuckle studs are designed to be installed on to wire rope or aircraft cable.