Towing and Recovery Chains
G70 Chain Extension with Delta Ring and Eye Grab Hook - Car Hauler Tie-Down
A heavy-duty chain extension made from Grade 70 heat-treated carbon steel with a delta ring and eye grab hook for secure load control in transport and lifting. It provides flexible length adjustment and reliable connection points for flatbed hauling, car carriers, and recovery operations. Available in 5/16" and 3/8" chain sizes with yellow chromate finish and NACM-compliant construction.
- Size
- 3" 5/16", 4" 3/8"
- Working Load Limit
- 3667 / 6600 lbs Breaking Strength on 3/8" Chain: 11,000 / 19,800 lbs Capacity on Delta Ring: 18000 / 20,000 lb
- Catalogue Family
- Towing and Recovery Chains
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What G70 Chain Extension Gives You
- Grade 70 heat-treated carbon steel delivers high tensile strength and wear resistance for repeated use
- Delta ring allows multi-angle connection compatibility with hooks, binders, and anchor points
- Eye grab hook enables quick, secure attachment without slippage during load shifts
- Yellow chromate finish resists corrosion in outdoor and harsh transport environments
- 18-inch total assembly length allows precise positioning of tie-downs on flatbeds and trailers
- NACM-compliant design meets DOT cargo securement standards for legal transport
- Interchangeable chain sizes (5/16” and 3/8”) support different load requirements and existing systems
Application Scenarios
Where G70 Chain Extension Is Used
- Car hauler trailers where straps need reinforcement with chain-based tie-downs to prevent damage during transit
- Flatbed logistics operations converting webbing systems to chain-based anchor points for heavy or sharp-edged cargo
- Construction site transport of equipment requiring secure, rigid connections that resist vibration and shock
- Towing and recovery setups needing a heavy-duty lead chain with quick-connect features for winching
- Industrial cargo handling where load positioning must be adjusted on the fly without re-rigging
Who It Is For
Buyers This Product Is Built For
- Car hauler and multi-car trailer operators needing durable chain extensions to protect vehicle straps
- Flatbed logistics companies integrating chain systems into existing webbing-based securement setups
- Construction and equipment transport firms specifying high-strength tie-downs for rugged conditions
- Towing and recovery service providers requiring reliable, fast-attach chain extensions
- Rigging distributors stocking modular components for custom tie-down assemblies
Problems It Solves
Problems This Product Removes
- Straps fraying or breaking under repeated tension when used on sharp edges or heavy loads
- Inconsistent length in chain systems requiring custom cutting or multiple fittings
- Slow or unreliable connection with standard hooks that slip under dynamic load
- Lack of compliance with NACM and DOT standards in temporary or improvised tie-downs
- Inability to adjust tie-down position without removing and re-securing the entire chain
- Using mismatched or non-rated components that compromise the entire securement system
Technical Features
Technical Features
- Grade 70 heat-treated carbon steel chain for high tensile strength and durability
- Delta ring with 4-inch inside length for multi-directional connection flexibility
- Eye grab hook with secure grip on chain links for fast attachment and release
- Yellow chromate plated finish for corrosion resistance in outdoor and wet environments
- Total assembly length of 18 inches excluding the hook, with 11 links in the chain section
- Chain sizes: 5/16” or 3/8” with matching eye grab hook and delta ring
- NACM-compliant design with working load limit and breaking strength stamped on the chain
Specifications
G70 Chain Extension Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Chain Grade | Grade 70 (G70) |
|---|---|
| Chain Size Options | 5/16”, 3/8”, or customized |
| Assembly Length | 18 inches total (excluding hook) |
| Chain Section | 11 links (5/16” x 9 links + 12mm x 2 links) or (3/8” x 9 links + 1/2” x 2 links) |
| Delta Ring Size | 3” (5/16”) or 4” (3/8”) inside length |
| Eye Grab Hook Size | Matches chain size: 5/16” or 3/8” |
| Breaking Strength | 11,000 lbs (5/16”), 19,800 lbs (3/8”) |
| Delta Ring Capacity | 18,000 lbs (5/16”), 20,000 lbs (3/8”) |
| Surface Finish | Yellow chromate plated |
| Standards Compliance | NACM standards, DOT cargo securement requirements |
Materials
Materials And Finishes
- Grade 70 heat-treated carbon steel chain for high tensile strength and impact resistance
- Delta ring forged from high-strength alloy steel with 4-inch inside length
- Eye grab hook made from matched Grade 70 steel with precision-machined gripping teeth
- Yellow chromate coating applied to all steel components for corrosion protection
Manufacturing Process
How This Product Is Made
1Cutting and forming of chain links from Grade 70 steel billet
2Heat treatment of chain and fittings to achieve required tensile strength
3Assembly of chain section with delta ring and eye grab hook
4Surface treatment with yellow chromate plating for corrosion resistance
5Proof load testing on production batches
6Marking of working load limit and chain size on the chain
7Final inspection and packing for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check on chain links, ring, and hook
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection for surface defects, plating integrity, and proper assembly
- Working load limit and chain size stamped on the chain for traceability
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom chain size options beyond 5/16” and 3/8”
- Custom length assembly upon request
- Custom marking including tonnage and private label
- Custom surface finish including zinc plating or powder coating
- Custom packaging configuration for pallet or carton based on warehouse needs
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Standard chain link with screw pin | The delta ring allows multi-angle connection and better load distribution than a single screw pin, which can bind under side load |
| Webbing strap with metal end fittings | Chain extension offers higher durability and resistance to abrasion, heat, and sharp edges compared to webbing |
| Fixed-length chain with eye and hook | The delta ring and eye grab hook allow adjustable length and flexible connection points without cutting or welding |
| Screw pin shackle with chain | The eye grab hook provides faster engagement and better grip on chain links than a screw pin shackle |
Use Guide
How To Use And Inspect G70 Chain Extension
- Match the working load limit to the calculated load, not the vehicle or winch rating
- Ensure the eye grab hook is fully engaged on the chain link before applying load
- Inspect the delta ring and chain for deformation, wear, or plating damage before each use
- Do not exceed the 18-inch assembly length; do not add extra links without recalculating strength
- Use only with compatible chain sizes and avoid mixing with non-rated or lower-grade components
- Retire the extension if the chain shows stretching, the delta ring is distorted, or the marking is unreadable
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Answers
G70 Chain Extension FAQ
What is the working load limit for the 3/8” chain version?
The working load limit is 6,600 lbs for the 3/8” chain version.
Is this chain extension NACM-compliant?
Yes. Every chain extension is produced to meet or exceed NACM standards for cargo securement.
Can I use this with a winch or recovery system?
Yes. The chain extension is suitable for towing and recovery operations as a heavy-duty lead or connection point.
What is the inside length of the delta ring?
The inside length of the delta ring is 4 inches for the 3/8” version and 3 inches for the 5/16” version.
Can I get a custom length or size?
Yes. Custom chain sizes and assembly lengths are available upon request.
What finish is applied to the chain?
The chain is yellow chromate plated for corrosion resistance in harsh environments.
How are the goods packed for export?
Standard cartons on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack. Free two-month storage in Qingdao warehouse is available for shipment consolidation.
Need A Quote On G70 Chain Extension
Send the sizes, the finish and the quantity on WhatsApp or by email. You get a priced reply within 24 hours and a straight answer on stock.
We reply within 24 hours on WhatsApp or by email. Send a drawing, a photo or a bill of materials and we will quote it as it stands.