The Mega-Track Hanger makes it easy to hang 140 or 300 series track onto pipe grids, or from individual pipes. The Mega-Track Hanger Short hangs from the lower pipe of the grid and secures the track just 3/16 of an inch below the grid pipe. It uses a Mega-Gridlock half to fasten over the pipe and secure from below with four 5/16" socket head screws. The Mega-Gridlock half has slots along the edge that act like a wrench to hold the four Nylock nuts from turning during installation. Only a slight downward pressure with your fingers is required to hold a nut in place for installation. The track hanger slides over the track prior to placing the track in position. Support track approximately every 4 feet.