G43 and G70 Hooks
Clevis Grab Hook Grade 43 Zinc-Plated H330
A forged carbon steel clevis grab hook with a narrow throat and latch pin, designed to securely grip a chain link or lifting point. It combines a U-shaped clevis for attachment with a grab hook mechanism that locks onto the chain, preventing slippage during lifting. Available in sizes from 1/4" to 3/4" with zinc plating, it is rated for use with Grade 43 or Grade 30 chain and marked with a safe working load limit. Not for overhead lifting.
- Size
- From 1/4" to 3/4"
- Material
- Carbon Steel
- Finish
- Powder Coated / Electric Galvanized / Self-Color
- Packing
- Cartons or Gunny Bags and then on 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 Clevis Grab Hook Grade 43 Zinc-Plated H330 Gives You
- Narrow throat design grips chain links tightly to prevent slipping under load
- Latch pin allows quick attachment and release without dropping the hook
- Zinc-plated finish resists corrosion in humid or marine environments
- Forged and quenched tempered carbon steel provides high strength and impact resistance
- Safe working load limit stamped on the body for traceability and compliance
- Standard 4:1 design factor ensures consistent safety margins across all sizes
- Compact design reduces bulk compared to separate clevis and hook assemblies
Application Scenarios
Where Clevis Grab Hook Grade 43 Zinc-Plated H330 Is Used
- Towing and recovery operations where a hook must grip a chain link on a vehicle or trailer
- Marine and offshore rigging where corrosion resistance and secure grip are critical
- Construction site material handling using chain slings with a secure connection point
- Industrial lifting where a quick-connect attachment to a chain is needed without tools
- Rigging setups requiring a single fitting to both connect to a chain and secure the load
Who It Is For
Buyers This Product Is Built For
- Towing and recovery equipment manufacturers building winch and chain kits
- Marine rigging contractors specifying corrosion-resistant lifting hardware
- Construction site managers sourcing reliable chain connection fittings
- Industrial maintenance teams needing quick-release attachment points
- Rigging distributors carrying a range of chain-compatible hooks with traceable load limits
Problems It Solves
Problems This Product Removes
- Chain links slipping out of a standard hook due to wide throat or lack of grip
- Need for two separate fittings — a clevis and a hook — increasing weight and complexity
- Corrosion damage on uncoated steel hooks in damp or saltwater environments
- Lack of visible safe working load marking on generic hooks leading to overloading
- Inconsistent safety margins due to non-standard design factors or unverified materials
- Difficulty in securing a hook to a chain link without a latch or pin mechanism
Technical Features
Technical Features
- Drop-forged carbon steel body with quench and temper heat treatment
- Narrow throat design to securely grip chain links and prevent slippage
- Latch pin with cotter hole for secure closure under dynamic load
- Zinc-plated surface finish for corrosion resistance in humid or marine service
- Standard 4:1 design factor with minimum breaking load four times the safe working load
- Safe working load limit stamped on the body for field traceability
- Available in sizes from 1/4” to 3/4” with matching chain diameter compatibility
Specifications
Clevis Grab Hook Grade 43 Zinc-Plated H330 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 2600 lbs to 20200 lbs safe working load |
|---|---|
| Material | Carbon steel drop forged and quenched tempered |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Surface Finish | Zinc plated standard, powder coated or self-color available |
| Size Range | 1/4" to 3/4" hook size |
| Chain Compatibility | Grade 43 or Grade 30 chain only |
| Throat Width | Narrow, designed to grip chain links securely |
| Pin Type | Latch pin with cotter hole |
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
- Carbon steel body drop forged then quenched and tempered for strength and toughness
- Zinc plating applied for corrosion resistance in humid or marine environments
- Latch pin made from high-strength steel with cotter hole for secure closure
- Optional powder coating or self-color finish for additional protection or branding
Manufacturing Process
How This Product Is Made
1Drop forging of the clevis and hook blanks
2Quench and temper heat treatment to achieve required hardness and strength
3Machining of the throat, pin hole, and latch mechanism
4Zinc plating or powder coating application
5Working load limit stamping on the body
6Proof load testing and final inspection
7Packing in cartons or gunny bags for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection of the latch pin and throat for defects
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body
- Private label and OEM marking available
- Finish options: zinc plated, powder coated, or electrophoretic black
- Sizes and configurations built to a supplied drawing
- Packing configuration adjusted for carton count and pallet pattern
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 D-Shackle | The clevis grab hook grips the chain directly and prevents slippage, while a D-shackle requires a separate link or pin to secure the chain |
| Screw Pin Hook | The latch pin allows faster attachment and release than a screw pin, which requires threading and tightening |
| Open-End Hook | The narrow throat and grab mechanism provide a secure grip on chain links, unlike open-end hooks that can slip off under load |
| Standard Clevis Hook | The grab hook design locks onto the chain, while a standard clevis hook relies on a pin and may not prevent chain slippage |
Use Guide
How To Use And Inspect Clevis Grab Hook Grade 43 Zinc-Plated H330
- Match the hook size and chain diameter before attaching to ensure compatibility
- Verify the stamped safe working load limit does not exceed the calculated load
- Close the latch pin fully and insert a cotter pin to prevent accidental opening
- Inspect the throat and pin for wear or deformation before each use
- Do not use for overhead lifting — only for side or direct chain attachment
- Retire the hook if the body shows bending, the throat is widened, or the marking is illegible
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
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Answers
Clevis Grab Hook Grade 43 Zinc-Plated H330 FAQ
Is this hook rated for overhead lifting?
No. It is not designed for overhead lifting and must only be used with chain in side or direct attachment applications.
Can I use this hook with Grade 30 chain?
Yes, but the hook must be rated to the safe working load limit of the Grade 30 chain, not the hook’s own rating.
What is the safety factor?
A standard 4:1 design factor is used, meaning the minimum breaking load is four times the stated safe working load.
What finishes are available?
Standard finish is zinc plated. Powder coating and electrophoretic black are available on request.
Can you provide a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with the order on request.
How are the hooks packed for export?
Standard packing is cartons or gunny bags on pallets. We can adjust the carton count and pallet pattern to suit your warehouse or retail pack.
What sizes are available?
Sizes range from 1/4" to 3/4" with corresponding safe working load limits and dimensions listed in the product table.
Need A Quote On Clevis Grab Hook Grade 43 Zinc-Plated H330
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.