HEX ground rod clamps (also known as grounding rod clamps or earth clamps) provide a permanent, mechanically robust, and low-resistance electrical connection between grounding electrode conductors and copper-bonded or solid copper earthing rods.
Engineered specifically for harsh soil conditions, each clamp is manufactured from high-grade cast bronze alloy to prevent galvanic corrosion and ensure continuous low-impedance ground paths for electrical fault currents and lightning dissipation systems.
cULus Listed & Direct Burial Certified: Cast with permanent direct burial markings for in-ground applications without requiring protective concrete enclosures or inspection pits.
Corrosion-Proof Hardware: Outfitted with heavy-duty stainless steel hex head set screws to deliver maximum clamping torque and maintain conductor grip under thermal expansion and soil compaction.
Standard Compatibility: Precision machined for standard 1/2″, 5/8″, and 3/4″ copper-bonded earth rods, galvanized steel rods, and rigid pipes.
High Fault-Current Dissipation: Designed to prevent loose connections that lead to arcing, equipment damage, transient voltage spikes, and touch-potential electrical hazards.
| Material | Size of Earthing Rod/Pipe | Product Code |
| Bronze | 1/2" | HGC - 411 |
| Bronze | 5/8" | HGC - 412 |
| Bronze | 3/4" | HGC - 413 |
Yes. HEX bronze ground rod clamps are certified for direct burial in earth and concrete, featuring cast bronze construction and high-tensile stainless steel hardware to resist soil acidity and moisture corrosion.
For a standard 5/8″ copper-bonded or steel ground rod, select product code HGC – 412. It accommodates ground rods between 14.2 mm and 15.8 mm and accommodates copper conductors from #10 AWG solid up to 1/0 AWG stranded.
While both connect earth conductors to grounding electrodes, a ground rod clamp is shaped specifically to maintain high mechanical pressure against cylindrical rods (typically 1/2″ to 3/4″ diameter) for direct earth grounding, whereas pipe clamps are designed for larger-diameter utility and conduit piping.
