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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.

TypeL mmD mmUnit Weight kgPack QuantityPart Number
Type1/2"L mm68D mm18Unit Weight kg0.07Pack Quantity25Part NumberERBO 12
Type5/8"L mm68D mm20Unit Weight kg0.12Pack Quantity25Part NumberERBO 16
Type3/4"L mm78D mm25Unit Weight kg0.14Pack Quantity25Part NumberERBO 20
Type1"L mm100D mm31Unit Weight kg0.25Pack Quantity25Part NumberERBO 25
Type5/8"L mm80D mm21Unit Weight kg0.08Pack Quantity25Part NumberERBO 16S

Material: High Copper Alloy (ERBO 16S – Silicon Bronze)

Tested: BS EN 62561-2.

Tightening Torque: 40 Nm

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