Steel Hanger Wire is certified and tested to handle maximum loads. Hanger wire is used in a variety of applications in the construction industry, including suspending duct-work, lighting fixtures, acoustical ceilings and more.Hanger wire comes stock in 12 gauge, 9 gauge, or 8 gauge, but special assemblies may be customized. Several different methods of anchoring may be used, including twisted wire with pigtail assembly, clip with screw to metal structure, and more.