Hammerlock Chain Connector 10mm | 3150kg Rated Safety Chain Link for Heavy Trailers (SKU: HLS10)

10mm Hammerlock Chain Connector – Rated 3150kg (HLS10)

For the biggest jobs and the heaviest trailers, you need maximum strength—and HLS10 delivers. This 10mm hammerlock connector is rated to a massive 3150kg working load, making it ideal for caravans, equipment trailers, off-road rigs, and other heavyweight towing systems.

It’s a fully ADR-compliant alternative to welding, perfect for connecting safety chains to the drawbar using a rated mounting point—especially with ARK XO Coupling Base Plate (XOCVBPV4).

Key Features:

• 10mm size – suits heavy-duty safety chains
• Working Load Limit (WLL): 3150kg
• ADR compliant – legal alternative to weld-on chain attachment
• High-grade steel construction – durable and built to last
• Compatible with ARK XO Coupling Base Plate (XOCVBPV4)
• Hammer-lock installation – no welding or specialist tools required

Built for Australia’s harshest towing conditions, this connector gives you the strength and peace of mind to haul serious weight—without compromising on safety or compliance.

Frequently Asked Questions

Evaluation & Recommendation

HLS10 is ideal for:

• Heavy trailers requiring >3000kg rated chain connections
• Builders and upfitters using ADR-compliant parts
• Caravan or off-road trailer setups with XO coupling systems
• Fleet users who want reliable, serviceable, weld-free installation

Installation Tips:

• Check that the drawbar attachment point is rated for your load
• Align the safety chain and base plate hole with the hammerlock connector
• Insert the bush and drive pin, then hammer firmly into place
• Inspect regularly for wear and re-tighten if needed

Need matching 6mm or 8mm connectors? Check out HLS06 and HLS08 for lighter setups.