nVent ERICO 615840UPC Grounding Rod, 5/8 in Dia Nominal, 4 ft L, Steel

Copper bonded, resists corrosion better than galvanized rods, allowing for a 30 year service life in most soils. Uniform plating thickness, average tensile strength of 80000 psi and straightness tolerance of 0.010 in per linear foot. Exceeds the requirements of ANSI/UL 467-1984, CSA and ANSI/NEMA GR-1. 99.9% pure electrolytic copper coating 99.9% pure electrolytic copper coating Molecular bond to nickel-sealed high strength steel core Rods have a high carbon steel core and tip that provide superior strength when driving Copper coating will not crack when bent or tear when driven Minimum copper coating of 10 mil on rods Nvent erico name, length, diameter and part number is roll-stamped within 12 in