Used to support the 6x4 and 4x4 systems attaching to any 3/8-Inch (9.5mm) x 1 1/2-Inch (38.1mm) or 3/8-Inch (9.5mm) x 2-Inch (50.8mm) ladder rack rail. Adjustable to nine incremental positions from 4-Inch (101mm) to 12-Inch (305mm) above or below the ladder rack. No threaded rod required. The pre-assembled slide clamps enable fast assembly to channel. Use 7/16-Inch nut driver on slide clamps. Panduit is a world-class manufacturer committed to innovation and excellence. Today, Panduit is recognized as a leading manufacturer of high-quality products for wiring and communications applications. This reputation gives the company a powerful advantage in today"s competitive worldwide marketplace.