99.9% pure electrolytic copper coating
Copper thickness is equal or above 0.254mm
Threads to be smooth and fully formed. The coating extend over the threads
Tensile strength is equal or above 600N/mm2
Bend the ground rod to 180 degree, the copper layer doesn’t break or peel.
Fit together with couplers, driving studs and spikers.
The rods are manufactured in accordance with BSEN50164-2