The McGill 3 Inch (90mm Outer Diameter) Loop Hanger is a type of pipe attachment designed to suspend stationary, non-insulated pipelines. Typically made from zinc-coated or galvanized steel for corrosion resistance, these hangers loop around the pipe to provide support.¹ They often feature a keyed insert nut for easy height adjustment using threaded rods and are recommended for reliable and secure suspension of various piping systems. These hangers are common in mechanical and electrical installations.