TERMINATION TECHNOLOGY ERCO Brass External Earth Rod Coupler 5/8 Inches\r\n- Material: High Tensile Low Carbon Steel.- Finish: Copper bonded thickness 25 microns.- Thread: 5/8 threaded for extension purposes.- Both rods can be driven manually or by a power hammer.- External brass coupler.\r\nThe TERMINATION TECHNOLOGY ERCO Brass External Earth Rod Coupler 5/8 Inches is High Tensile Low Carbon Steel and Copper bonded thickness 25 microns. That is suitable for all 5/8" extendable earth rods. Earth Rods have various functions & advantages, they are also known as electrodes or grounding rods and their fittings are used for effective Earthing systems in overhead and underground electricity distribution and transmission networks.\r\nFeatures:\r\n- Finish Brass.- Brass Construction.- Connection Type: Female Thread.- Parent Colour: Brass.- Product Type: Earth Rod Coupler.- Rod Diameter: 5/8".- Condition: New.- Brand: TERMINATION TECHNOLOGY.- Internal/External Usage: External.