One Conductor Extruded Copper Connector with 1/0-14 Wire [Set of 2] Save when you buy the 2 pack! Copper Mechanical Connector Extruded Style One Conductor - 1 Conductor extruded Copper MechanicalConnector is best for copper wire connections Solid One-piece 1 Conductor Copper Connector made from Extruded Copper for superior mechanical strength and excellent electrical performance 1/4" Hex Head Screw Suitable for Use with Copper Wire only