G43 and G70 Hooks
R Hook Grade 70 Towing Hook 5/16"/8mm, WLL 4700LBS.
A drop-forged alloy steel R hook with a large curved claw and low-profile design, engineered to fit blind mounting holes in American vehicle chassis. It secures to the frame by inserting the claw into the hole and twisting, locking the hook in place under tension. Rated for 4700 lbs WLL when used with 5/16" Grade 70 chain or lower. Designed for towing, pulling, and dragging operations on Ford, GM, and Chrysler vehicles.
- Size
- 5/16"/8mm
- Working Load Limit
- 4700LBS
- Material
- Alloy Steel/Carbon Steel Processing: Forged
- Finish
- Electric Yellow Galvanized / Self-Color
- Packing
- Cartons + Pallets
- Catalogue Family
- G43 and G70 Hooks
- 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 R Hook Grade 70 Towing Hook 5 Gives You
- Large curved claw reaches deep into vehicle frame holes, locking securely under tension to prevent detachment during rough terrain towing
- Low-profile design fits flush against the frame, reducing snag risk and improving clearance on tight recovery setups
- Drop-forged alloy steel body with heat treatment provides high strength and impact resistance for repeated dynamic loads
- Yellow zinc (rainbow) plating offers corrosion resistance for outdoor and marine environments
- 4:1 safety factor ensures the minimum breaking load is four times the stated working load limit
- Compatible with 5/16” Grade 70 chain or lower, ensuring safe load transfer without overloading the hook
- Integrated into RTJ cluster hook systems, reducing the need for multiple separate fittings
Application Scenarios
Where R Hook Grade 70 Towing Hook 5 Is Used
- Towing a Ford F-150 or Mustang using the frame’s elongated tie-down hole with a secure, non-slip attachment
- Recovery operations on off-road vehicles where the hook must stay anchored during high-tension pulls over rough terrain
- Commercial fleet towing where consistent, reliable hook performance is required across multiple vehicle models
- Truck and trailer recovery kits where space and weight matter and a compact, secure hook is needed
- Integrated use in RTJ cluster hook assemblies for multi-point towing and winch recovery systems
Who It Is For
Buyers This Product Is Built For
- Towing and recovery equipment manufacturers building cluster hook kits for commercial and off-road use
- Fleet operators specifying secure, vehicle-specific frame hooks for their towing and recovery gear
- Off-road vehicle accessory brands designing winch and recovery systems for Ford, GM, and Chrysler chassis
- Rigging distributors carrying a range of vehicle-specific towing hardware with proven fit and load capacity
- Truck and trailer service providers needing reliable, field-proven hooks for roadside recovery
Problems It Solves
Problems This Product Removes
- Standard hooks slipping out of vehicle frame holes under dynamic load, especially on Ford models with elongated tie-down points
- Inadequate anchoring in frame holes leading to hook failure or detachment during towing over rough terrain
- Lack of compatibility between generic hooks and the specific blind mounting holes found on American vehicle chassis
- Need for multiple separate fittings when building a cluster hook system, increasing complexity and cost
- Corrosion damage to hooks exposed to salt, moisture, and road debris during long-term outdoor use
- Uncertainty about safe working load limits when using hooks with mismatched chain sizes or grades
Technical Features
Technical Features
- Drop-forged alloy steel body with heat treatment for strength and durability
- Large curved claw designed to fit blind mounting holes in Ford, GM, and Chrysler chassis
- Connecting eye terminal for attachment to chain or link
- 5/16” (8mm) size with 4700 lbs WLL when used with 5/16” Grade 70 chain or lower
- 4:1 safety factor, minimum breaking load four times the WLL
- Yellow zinc (rainbow) plating for corrosion resistance
- Stamped WLL and traceability marking on the body
- Designed for use with Grade 70 chain or lower, not for overhead lifting
Specifications
R Hook Grade 70 Towing Hook 5 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Size | 5/16” / 8mm |
|---|---|
| WLL | 4700 lbs |
| MBS | 2900 kg / 4700 lbs |
| Material | Alloy steel / Carbon steel |
| Processing | Drop forged and heat treated |
| Finish | Electric yellow galvanized / self-color |
| Safety Factor | 4:1 |
| Chain Compatibility | 5/16” Grade 70 or lower |
| Dimensions | A 14.4 mm, B 26.0 mm, L 85.2 mm, M 66.9 mm |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- High-strength alloy steel drop forged and heat treated for impact resistance
- Carbon steel option where duty allows
- Electric yellow galvanized (rainbow zinc) coating for corrosion resistance
- Self-color finish available upon request
Manufacturing Process
How This Product Is Made
1Drop forging of the hook blank
2Heat treatment to achieve required strength and hardness
3Machining of the eye and claw profile to exact dimensions
4Zinc plating or self-color finish application
5WLL and traceability marking stamped on the body
6Proof load testing and inspection
7Packing in cartons and pallets for export
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the China warehouse before shipment
- WLL and traceability marking verified for legibility and accuracy
Customisation
Customisation Options
- Custom tonnage stamping on the body
- Private label and OEM marking for gear brands
- Finish options: electric yellow galvanized, self-color, or custom
- Sizes and configurations built to a supplied drawing
- Carton and pallet packing configured for your warehouse or retail pack
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 straight shank hook | The R-hook’s curved claw locks into the frame hole under tension, preventing pull-out; a straight hook lacks this retention and can slip during dynamic loads |
| Screw pin hook | The R-hook has no pin to back out under vibration; a screw pin requires regular inspection and torqueing to stay secure |
| J-hook | The R-hook fits blind frame holes and locks in place; a J-hook requires an open hole and does not engage the frame edge for secure anchoring |
| Eye hook | The R-hook provides a deeper engagement in the frame hole and better resistance to pull-out; an eye hook relies on bolted attachment and can rotate under load |
Use Guide
How To Use And Inspect R Hook Grade 70 Towing Hook 5
- Ensure the hook size matches the vehicle frame hole and chain diameter before use
- Insert the curved claw into the frame hole and twist to lock it in place under tension
- Never exceed the 4700 lbs WLL when using 5/16” Grade 70 chain or lower
- Do not use for overhead lifting or suspended loads
- Inspect the hook for deformation, wear, or coating damage before each use
- Retire the hook if the claw shows bending, the marking is illegible, or the finish is compromised
Related Products
Often Ordered With This Item
Bolt-On Tow Hook with Safety Latch
Grade 70 Bolt-On Grab Hook with Backer Plate
5/16 G70 Mini J Hook | Compact Frame J Hook
Triangle Snap Hook, Triangle Ring Safety Hook For Lashing Strap
Clevis Grab Hook with Safety Latch A330N Grade 70
Weld On Grab Hook Grade 70 Forged Steel Chain Hooks
Eye J Hook 8" Tow J Hook Short Type, G70 WLL 4700LBS
Eye J Hook 15" Towing Long Shank Hook,Grade 70 Forged Steel WLL 4700LBS
Browse The Category
Industries Using This Product
Sourcing Support For This Product
Guides Worth Reading Before You Order
Answers
R Hook Grade 70 Towing Hook 5 FAQ
Is this hook compatible with Ford F-150 and Mustang frame holes?
Yes. The R-hook is specifically designed to fit the elongated blind mounting holes found on Ford F-150, Mustang, and other American vehicle chassis.
Can I use this hook with Grade 80 chain?
No. The WLL is rated for 5/16” Grade 70 chain or lower. Using it with Grade 80 chain exceeds the safe working load limit.
What is the safety factor?
A standard 4:1 design factor, so the minimum breaking load is four times the stated working load limit of 4700 lbs.
What finish options are available?
Standard finish is electric yellow galvanized (rainbow zinc). Self-color and custom finishes are available upon request.
Can you stamp our custom tonnage and brand?
Yes. Custom tonnage stamping, private label marking, and OEM packing are standard options.
How are they packed for export?
Cartons on pallets as standard. We can configure carton count and pallet pattern to suit your warehouse or retail pack. Goods can be held in our Qingdao warehouse free for two months.
Is a Material Test Certificate available?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with every order.
Need A Quote On R Hook Grade 70 Towing Hook 5
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.