Threaded Couplings

These Wallis high-strength couplings are used for joining
copperbond threaded earth rods together. They facilitate deep
driving and ensure continual contact between the rods both
during and after installation.
The coupling also protects the earth rod threads during
installation with the threaded driving head. There is a lead-in
for ease of assembly and the hexagonal design allows for grip
and keeping the coupling tight when driving into the ground. All
Wallis couplings are manufactured from a high copper content
alloy ensuring excellent corrosion resistance.