The Westinghouse Lighting 12-Inch All Thread Lamp Pipe Kit includes indispensable hardware for building or repairing a lamp or fixture. Each of the two 12-inch lamp pipes can act as a foundation for the structure of a lamp while concealing its wiring. The steel pipes are threaded and standard 1/8-IP size to fit with common components. Additionally, they are zinc plated for longevity. The kit comes with a variety of other hardware to complement the two lamp pipes, including two couplings, two locknuts, two knurled locknuts, and two washers. Each piece is standard 1/8-IP size, making them all compatible and interchangeable.