Oatey 2" Steel Clevis Hanger. It is designed to support PVC, ABS, galvanized, black iron, and cast iron piping. Made of durable steel, this hanger allows for the expansion and contraction of multiple pipes and has been rigorously tested to last in various conditions. Diagonal nail holes enable fitting in small areas. Oatey products have earned the trust of plumbing professionals for over 100 years.