Hubbell Electrical / Burndy Type GZ Mechanical grounding connector in unplated finish is made of high copper alloy for enhanced durability. It measures 1-3/4 Inch x 2-1/8 Inch. Connector is perfect for connecting copper cable to 1/4-Inch thick bar. It can accommodate 3 - 2/0 AWG stranded conductors and includes 1/2-Inch stud. It is suitable for direct burial in concrete or ground and is gripped by curving it around the clamping bolt. Connector is UL listed CSA certified and RoHS compliant.