Copper bond Electrode are the ideal driven earth electrodes, as they offer the installer an economical and efficient earth rod grounding system. pure electrolyte copper is uniformly molecularly bonded into a high tensile steel core to a minimum thickness of 0.254 mm, thus ensuring excellent corrosion resistance and eliminating electrolytic action.Coupling threads are formed by a rolling process to ensure thread strength and to maintain the integrity of the molecularly bonded copper.