Copper bonded earthing rods come in both threaded and unthreaded varieties, giving you the flexibility to meet different grounding system needs. The threaded ones feature external threads, making it easy to connect them with brass alloy connectors. This design is perfect for deep installations or when you need to link multiple rods together to achieve the right earth resistance. The t... https://www.pioneerpowers.com/copper-bonded-earth-rod.php