HEX Earth Rod Clamps, Couplers & Driving Studs – UL Listed Bronze Clamps, Brass & Gunmetal Couplers

Every earth electrode needs a way to be driven, extended and connected. This page brings together the HEX earth rod accessories for threaded and unthreaded rods: UL-listed bronze grounding rod clamps for direct burial, couplers that join rods end to end, and driving studs and heads that take the hammer blows so the rod threads are not damaged. Made by HEX, the brand of Brass Copper & Alloy (I) Ltd., Mumbai — an ISO 9001 company whose products are tested by CPRI (India), UL (USA), KEMA (Netherlands) and SIRIM (Malaysia).

At a glance

• Rod clamps: bronze, direct burial, stainless steel screw — HGC-411/412/413 for 1/2", 5/8", 3/4" rods, UL listed
• Threaded couplers: brass, aluminium bronze or gunmetal — 14, 16 (5/8") and 19 (3/4") mm
• Driving studs: high-tensile steel — 14 mm, 5/8", 3/4", 1/2"
• Unthreaded rods: HERC copper-alloy couplers and HDSU driving heads
• Standard: grounding clamps UL listed to UL 467 and CAN/CSA C22.2 No. 41

Why these accessories

• Couplers enclose the threads completely — counter-bored to protect the threads from damage and corrosion.
• Three coupler alloys — brass, aluminium bronze or gunmetal to suit the site.
• UL-listed clamps for direct burial, with stainless steel screws.
• Protects your rods — hardened driving studs and heads take the impact, not the rod.

Specifications

• Grounding rod clamps (direct burial): bronze, stainless steel screw: HGC-411 (1/2" rod), HGC-412 (5/8"), HGC-413 (3/4") — UL listed
• Threaded couplers — 14 mm: HEC-14 brass, HEC-15 aluminium bronze, HEC-15G gunmetal
• Threaded couplers — 16 mm / 5/8": HEC-16 brass, HEC-17 aluminium bronze, HEC-17G gunmetal
• Threaded couplers — 19 mm / 3/4": HEC-19 brass, HEC-20 aluminium bronze, HEC-20G gunmetal
• Driving studs (high-tensile steel): HDS-14 (14 mm), HDS-16 (5/8" / 16 mm), HDS-19 (3/4" / 19 mm), HDS-12 (1/2"); Allen-key type hardened studs on request
• Unthreaded rods: couplers HERC (copper alloy) and driving heads HDSU (high-tensile steel) — specify the rod diameter

Where it is used

• Extending earth electrodes to reach low-resistance soil
• Connecting earth conductors and tapes to rods
• Substation, tower, building and solar earthing
• Lightning-protection earth terminations

Related products

• HEX copper bonded earth rods
• HEX solid copper earth rods
• HEX stainless steel earth rods
• HEX earth pit accessories

Frequently asked questions

What does an earth rod coupler do?

It joins two threaded rods end to end so the electrode can be driven deeper; HEX couplers are counter-bored to enclose the threads completely and protect them from damage and corrosion.

Brass, aluminium bronze or gunmetal — which coupler should I choose?

All three are offered for 14, 16 and 19 mm rods; aluminium bronze and gunmetal are the harder, more corrosion-resistant alloys for demanding sites.

Why use a driving stud?

It takes the hammer blows so the rod thread and coupler are not damaged; HEX driving studs are high-tensile steel.

Are the rod clamps suitable for burial?

Yes — HGC-411, 412 and 413 are bronze clamps with stainless steel screws for direct burial, UL listed.

Where can I buy HEX earthing products in India?

From Jai Enterprises, which supplies HEX earthing and lightning-protection material across India from Bhilai and Raipur, Chhattisgarh. Call +91 9340081159 with the item codes and quantities.

How to order

Supplied by Jai Enterprises, despatched from Bhilai and Raipur, Chhattisgarh, to sites across India. To request a price, call +91 9340081159 or send an enquiry from this page with your quantity and site details, and we will confirm availability, lead time and the right model for the job.