Corrosion resistance, conductivity and mechanical strength are essential considerations in clamp design to ensure an earthing system remains operative for many years.
All Furse earth rod clamps have high strength copper alloy bodies and screws e.g. aluminium bronze,
phosphor bronze etc. – commercial brass is not used.

Standards
BS EN 62561-1 Class H (CR520)
BS EN 50164-1 Class H (CR515, CR530)
BS 7430 (all CR5 prefixed part no.s)
UL 467 (G5 & G6)