030-0643-000 is an ITT Grinnell Hanger Threaded Malleable Iron Malleable Iron Channel Hanger. The hanger is designed for use on threaded rods and is made of malleable iron for strength and durability. It can be used for hanging light fixtures, ceiling fans, sprinkler systems, electrical systems, light switches and more. The hanger has a galvanized finish for improved corrosion resistance.