Grade 80 Links
G80 US Type Connect link
A Grade 80 alloy steel connecting link designed for joining hooks, master links, and other fittings to Grade 80 chains. It features a hammerlock profile for secure engagement and is suitable for overhead lifting, lashing, and towing. Available from 1/4 inch to 1 1/4 inch with working load limits from 1.12T to 31.5T. Powder plastified surface finish standard.
- Size
- From 1/4" to 1 1/4"
- Working Load Limit
- 1.12T-31.5T B. L= 4 times*WLL
- Packing
- Cartons then pack on pallets
- Catalogue Family
- Grade 80 Links
- 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 G80 US Type Connect Link Gives You
- Hammerlock design ensures secure connection and prevents accidental disengagement under load
- Grade 80 alloy steel provides high tensile strength and durability in heavy-duty applications
- Powder plastified finish resists corrosion and wear in harsh industrial and marine environments
- Standard 4:1 design factor ensures safe working load limit is four times the minimum breaking load
- Compact form factor reduces bulk in rigging systems while maintaining full load capacity
- Interchangeable with standard Grade 80 chain components for seamless integration
- Reduces need to source separate connecting hardware from multiple suppliers
Application Scenarios
Where G80 US Type Connect Link Is Used
- Overhead lifting operations in construction and industrial facilities using Grade 80 chain systems
- Marine and offshore rigging where corrosion resistance and high strength are critical
- Heavy equipment towing and recovery using chain-based winch systems
- Cargo lashing and securing in transport and logistics with repeated load cycles
- Mining and energy sector applications requiring reliable chain connection points
- Industrial rigging setups involving multiple chain components and fittings
Who It Is For
Buyers This Product Is Built For
- Rigging contractors sourcing complete chain systems with compatible connectors
- Logistics and transport companies specifying durable chain hardware for freight securing
- Marine operators requiring corrosion-resistant chain fittings for mooring and anchoring
- Manufacturers of lifting and towing equipment needing reliable connecting links
- Industrial maintenance teams replacing worn or damaged chain connectors in the field
Problems It Solves
Problems This Product Removes
- Inconsistent or unreliable connections between chain components due to poorly designed links
- Accidental disengagement of chain fittings during dynamic lifting or towing
- Corrosion and surface degradation in harsh environments reducing link lifespan
- Need to source connecting links from multiple suppliers for different chain systems
- Lack of traceability and certification for chain hardware used in safety-critical applications
- Inadequate surface finish leading to abrasion and premature wear on chain systems
Technical Features
Technical Features
- Drop-forged Grade 80 alloy steel body for high strength and impact resistance
- Hammerlock profile with precise mating geometry for secure connection
- Powder plastified surface finish for corrosion and wear resistance
- Standard 4:1 design factor with minimum breaking load four times the WLL
- Working load limit stamped on the body for field traceability
- Designed to connect directly to Grade 80 alloy steel chains and fittings
- Available in sizes from 1/4 inch to 1 1/4 inch with full WLL and dimension data
Specifications
G80 US Type Connect Link Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 1.12T to 31.5T safe working load |
|---|---|
| Material | Grade 80 alloy steel |
| Surface Finish | Powder plastified |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Size Range | 1/4 inch to 1 1/4 inch |
| Dimensions | A, B, D, E as per published table |
| Weight Range | 0.36 lbs to 20.38 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 80 alloy steel body drop forged for strength and consistency
- Powder plastified coating applied for surface protection and corrosion resistance
- Heat treatment to ensure hardness and tensile strength meet Grade 80 requirements
- No galvanizing or zinc plating; powder plastified finish is standard
Manufacturing Process
How This Product Is Made
1Drop forging of the link blank from Grade 80 alloy steel
2Heat treatment to achieve required hardness and tensile properties
3Machining of the hammerlock profile and mating surfaces
4Surface finishing via powder plastification process
5Stamping of working load limit and grade marking on the body
6Proof load testing and dimensional verification
7Packing in cartons then palletized 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
- Visual inspection for surface defects and coating uniformity
- Material Test Certificate to EN 10204 3.1 issued with order on request
- Third-party inspection accepted at warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the link body
- Private label and OEM marking available
- Custom surface finish including powder plastified, zinc plated, or electrophoretic black
- Custom sizes and configurations built to a supplied drawing
- Custom carton and pallet packing configuration to suit warehouse or retail 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 round link | The hammerlock design provides a more secure connection and prevents accidental disengagement, but is not interchangeable with round links |
| Screw pin master link | The connecting link has no moving parts and is more secure under vibration, but cannot be opened and reconnected in the field |
| Welded link | The forged link has higher impact resistance and consistent strength, but welded links may be used in non-critical applications where cost is a factor |
| Grade 70 link | The Grade 80 link has higher tensile strength and better fatigue resistance, but is not compatible with Grade 70 chain systems without verification |
Use Guide
How To Use And Inspect G80 US Type Connect Link
- Verify the stamped working load limit matches the calculated load, not the equipment rating
- Ensure the hammerlock profile is fully engaged with the chain link before loading
- Inspect the surface finish and mating surfaces for damage before use
- Do not use if the link shows deformation, cracks, or coating damage
- Avoid side loading or twisting the link during installation and operation
- Retire the link if the marking is illegible or the connection feels loose under tension
Related Products
Often Ordered With This Item
G80 Weldless Round Ring | Forged Alloy Steel Ring - S-643
Pear Shaped Link Forged Weldess Pear links A-341, G-341
Weld-on pivoting link / Grade 80 Weld on Lifting Point
Swivel Hoist Ring/G80 Universal Swivel Eyebolt with Ring
GRADE 80 EYEBOLT/Alloy Steel Eye Bolt
G80 Welded Master Link Assembly A347
G80 Web Sling Connector
G80 European Type Coupling Link
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Answers
G80 US Type Connect Link FAQ
What is the design factor for these connecting links?
A standard 4:1 design factor, so the minimum breaking load is four times the stated safe working load.
Can I get a Material Test Certificate with my order?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with every order.
Are these links compatible with Grade 80 chains?
Yes. The hammerlock design is specifically engineered to connect directly to Grade 80 alloy steel chains and fittings.
What surface finish is standard?
Powder plastified finish is standard. Custom finishes including zinc plating, powder coating, or electrophoretic black are available on request.
Can I get custom tonnage stamping or branding?
Yes. Custom tonnage stamping, private label marking, and OEM branding are standard options.
How are the links packed for export?
Standard packing is cartons on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack.
What sizes are available?
Sizes range from 1/4 inch to 1 1/4 inch. The full dimension and WLL table is provided in the product data sheet.
Need A Quote On G80 US Type Connect Link
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.