Appleton Grounding Bushing, 1-1/2", Threaded, Insulated, Malleable Iron

1-1/2 Inch, Insulated Ground Bushing, Threaded, Bushing Material: Malleable Iron, Lug Material: Aluminum. Wire Size: 14 AWG (Solid) - 4 AWG (Stranded). For Copper or Aluminum Grounding.