G43 and G70 Hooks
Eye Hoist Hook With Latch 320C
A forged eye hoist hook with safety latch in Grade 43 carbon steel, designed for direct attachment to wire rope slings or chain ends. The latch retains the sling during lifting but does not carry the load. Sizes range from 3/4T to 15T safe working load, with dimensions and weight provided for each size. Powder coated or electric galvanized finish for corrosion resistance. Used in lifting, tensioning, and rigging operations where quick attachment and secure retention are needed.
- Size
- From 3/4T to 15T
- Material
- Carbon Steel
- Finish
- Powder Coated / Electric Galvanized
- 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 Eye Hoist Hook with Latch 320C Gives You
- Direct attachment to wire rope slings eliminates the need for a shackle, reducing part count and setup time
- Safety latch prevents accidental sling disengagement during lifting and positioning
- Forged and quenched tempered construction provides high impact strength and fatigue resistance
- 5:1 safety factor ensures reliable performance under dynamic and static loads
- Powder coated or electric galvanized finish resists rust and wear in outdoor and industrial environments
- Clear WLL marking on the hook body allows for quick field verification
- Compact design reduces bulk in tight rigging spaces and on crane hooks
Application Scenarios
Where Eye Hoist Hook with Latch 320C Is Used
- Lifting and positioning steel beams, structural sections, and precast concrete elements on construction sites
- Tensioning chain assemblies in rigging setups for cranes, winches, and hoists
- Securing and moving heavy machinery and industrial equipment in manufacturing and maintenance
- Marine and offshore rigging where corrosion resistance and secure attachment are critical
- Temporary lifting points in infrastructure projects where quick rigging is required
- Repetitive lifting cycles in logistics and warehouse operations with frequent sling changes
Who It Is For
Buyers This Product Is Built For
- Construction contractors specifying lifting hardware for structural steel and precast work
- Industrial maintenance teams needing reliable, fast-attach hooks for equipment handling
- Marine and offshore rigging crews requiring corrosion-resistant hooks with secure latches
- Logistics and warehouse operators managing high-volume sling changes and crane lifts
- Rigging distributors carrying a full range of lifting hooks who need a reliable, stamped product
- Manufacturers of lifting systems integrating hooks into their rigging kits
Problems It Solves
Problems This Product Removes
- Need for a shackle to connect a sling to a hook, adding cost, weight, and complexity
- Sling slipping off the hook during lift due to lack of retention mechanism
- Using a hook without a latch that requires manual securing or additional hardware
- Corrosion damage on uncoated hooks in wet or humid environments
- Unclear or missing WLL marking on the hook body leading to unsafe load decisions
- Lack of traceability and material verification in the field for compliance checks
Technical Features
Technical Features
- Drop forged Grade 43 carbon steel body with quench and temper heat treatment
- Safety latch designed to retain the sling but not carry the load
- 5:1 safety factor with minimum breaking load four times the safe working load
- WLL stamped on the hook body for traceability and field use
- Powder coated or electric galvanized surface finish for corrosion resistance
- Dimensions provided for each size: O (overall length), R (radius), T (throat depth), B (width), 320C (pin diameter), 320A (hook diameter)
- Standardized size range from 3/4T to 15T safe working load
Specifications
Eye Hoist Hook with Latch 320C Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 3/4T to 15T safe working load |
|---|---|
| Material | Grade 43 carbon steel forged and quenched tempered |
| Safety Factor | 5:1 minimum breaking load to safe working load |
| Surface Finish | Powder coated or electric galvanized |
| 3/4T Dimensions | O 2.8 R 0.81 T 0.65 B 0.63 320C 0.75 320A 0.63 inches weight 0.57 lbs |
| 1T Dimensions | O 3.22 R 0.88 T 0.81 B 0.75 320C 0.91 320A 0.75 inches weight 0.77 lbs |
| 2T Dimensions | O 4.09 R 1 T 0.84 B 1.12 320C 1.12 320A 1.12 inches weight 1.28 lbs |
| 5T Dimensions | O 5.78 R 1.34 T 1.38 B 1.56 320C 1.56 320A 1.56 inches weight 3.66 lbs |
| 10T Dimensions | O 10.09 R 2.22 T 2.72 B 2.83 320C 2.83 320A 2.83 inches weight 22.15 lbs |
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
- Grade 43 carbon steel forged into shape and then quenched and tempered for strength and toughness
- Powder coat or electric galvanizing applied after forging for surface protection
- Latching mechanism made from hardened steel to resist deformation under repeated use
- No stainless steel components unless specified in customization
Manufacturing Process
How This Product Is Made
1Forging of the hook blank from Grade 43 carbon steel
2Quench and temper heat treatment to achieve required hardness and strength
3Machining of the hook throat, eye, and latch pivot points
4Assembly of the safety latch and pivot pin
5Surface finishing by powder coating or electric galvanizing
6WLL and grade stamping on the hook body
7Proof load testing and dimensional inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches to verify WLL and structural integrity
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 5:1 safety factor
- Visual inspection for cracks, burrs, and surface 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 hook body
- Private label and OEM marking available
- Finish to order: powder coated, electric galvanized, or electrophoretic black
- Custom size and configuration built to a supplied drawing
- Packing configuration adjusted for carton count, pallet pattern, 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 |
|---|---|
| Screw pin hook | The latch version offers faster engagement and disengagement without a pin, but a screw pin allows for adjustable tension and is more secure under side loading |
| Shackle with sling | The eye hook eliminates the shackle and reduces part count, but a shackle allows for greater flexibility in sling orientation and rotation |
| Unlatched eye hook | The latch prevents accidental sling release, but an unlatched hook is lighter and simpler with no moving parts to fail |
| Chain link with hook | The forged hook is stronger and more durable under repeated lifting, but a chain link is more flexible and easier to adjust in tight spaces |
Use Guide
How To Use And Inspect Eye Hoist Hook with Latch 320C
- Always verify the stamped WLL matches the calculated load before lifting
- Ensure the safety latch is fully closed and latched before each lift
- Do not use the latch to carry the load—only to retain the sling
- Inspect the hook for deformation, cracks, or wear on the throat and eye before each use
- Check that the latch moves freely and the pivot pin is secure
- Retire the hook if the WLL marking is illegible, the throat opening exceeds 15% of original, or the hook shows visible distortion
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Clevis Grab Hook with Safety Latch A330N Grade 70
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Eye J Hook 15" Towing Long Shank Hook,Grade 70 Forged Steel WLL 4700LBS
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Answers
Eye Hoist Hook with Latch 320C FAQ
Can the latch support the load?
No. The latch is only designed to retain the sling or rigging attachment. It must not carry the load. The hook body and forged structure carry the full working load.
What is the safety factor on these hooks?
A standard 5:1 safety factor, so the minimum breaking load is five times the stated safe working load.
Are Material Test Certificates available?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with the order on request.
What finishes are available?
Standard finishes are powder coated or electric galvanized. Custom finishes including electrophoretic black are available on request.
Can you stamp custom tonnage or brand?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options.
How are the hooks packed for export?
Packed in cartons or gunny bags, then palletized. We can configure the carton count and pallet pattern to suit your warehouse or retail requirements.
What sizes are available?
Sizes range from 3/4T to 15T safe working load. The full size table includes dimensions O, R, T, B, 320C, 320A, and weight for each capacity.
Need A Quote On Eye Hoist Hook with Latch 320C
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.