Shackles
JIS Standard Screw Pin Chain Type Shackles For Rigging
JIS standard screw pin chain shackles for rigging are drop-forged carbon steel D shackles with a threaded pin and nut, designed for secure connection between chains, slings, and wire ropes in heavy-duty lifting. They meet JIS standards and carry a 4:1 design factor, with working load limit and size embossed on each shackle. Available from 5mm to 50mm, with capacities from 80kg to 8000kg, and finished in electric galvanizing or custom surface treatments.
- Size
- 5mm-50mm Surface: electro galvanize or on special requirement. Process: free forged; quenched and tempered WLL
- Material
- Carbon steel
- Packing
- Cartons or Gunny Bags and then on Pallets
- Catalogue Family
- Shackles
- 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 Shackles for Rigging Gives You
- Drop-forged carbon steel body with quench and temper heat treatment for high impact resistance and fatigue strength
- Threaded screw pin with nut allows secure closure and field adjustment using hand tools
- Electric galvanized surface finish resists corrosion in damp, marine, and outdoor environments
- 4:1 design factor ensures minimum breaking load is four times the safe working load
- Working load limit and size stamped directly on the shackle body for traceability and on-site verification
- Standardized dimensions per JIS ensure compatibility with other rigging components and international systems
- Compact D-shackle design reduces bulk while maintaining high strength in tight rigging setups
Application Scenarios
Where Shackles for Rigging Is Used
- Connecting chain links in offshore platform maintenance where corrosion resistance and reliable closure are critical
- Securing wire rope ends in crane rigging systems on construction sites with frequent repositioning
- Joining chain slings in mining equipment hoisting where vibration and shock loading occur
- Marine cargo handling on ports and docks where exposure to saltwater demands durable surface protection
- Temporary rigging setups in industrial plants where quick assembly and disassembly are required
- Transportation of heavy machinery using chain-based tie-downs where secure connection prevents load shift
Who It Is For
Buyers This Product Is Built For
- Marine and offshore contractors specifying corrosion-resistant rigging for deck and mooring systems
- Construction site supervisors managing crane lifts with chain and wire rope connections
- Mining equipment operators needing durable shackles for hoisting and pulling operations
- Logistics and transport firms using chain-based load securing on trailers and flatbeds
- Industrial maintenance teams replacing worn shackles in high-vibration environments
- Rigging distributors stocking standardized JIS-compliant shackles for global supply
Problems It Solves
Problems This Product Removes
- Inconsistent or non-compliant shackles from unverified suppliers leading to load failure or inspection rejection
- Shackles with loose or unreliable pin closures that back off under vibration or dynamic load
- Lack of traceability in load rating and size marking causing confusion during inspection or use
- Surface finish that corrodes quickly in humid or marine environments, reducing service life
- Incompatibility between shackles and other rigging components due to non-standard dimensions
- Multiple suppliers needed for different shackle types, increasing procurement complexity and lead time
Technical Features
Technical Features
- Drop-forged carbon steel body with quench and temper heat treatment for strength and toughness
- Threaded screw pin with nut for secure closure and field adjustment
- 4:1 design factor with minimum breaking load four times the safe working load
- Working load limit and size embossed on the shackle body for on-site verification
- Electric galvanized surface finish for corrosion resistance in harsh environments
- JIS standard dimensions ensuring compatibility with other rigging hardware
- Available in sizes from 5mm to 50mm, with capacities from 80kg to 8000kg
Specifications
Shackles for Rigging Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Size Range | 5mm to 50mm |
|---|---|
| Capacity Range | 80kg to 8000kg safe working load |
| Material | Carbon steel |
| Surface Finish | Electric galvanized or custom on request |
| Process | Drop forged, quenched and tempered |
| Design Factor | 4:1 minimum breaking load to safe working load |
| WLL Marking | Embossed on shackle body |
| Standards | JIS |
| Dimensions | B, D, L, d/d1 per JIS standard table |
| Weight Range | 0.014kg to 11.5kg per piece |
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 high strength and impact resistance
- Electric galvanized coating applied after forging to resist rust and corrosion
- Threaded screw pin and nut made from carbon steel with matching finish
- Custom surface treatments available including zinc plating, powder coating, or electrophoretic black
Manufacturing Process
How This Product Is Made
1Drop forging of the D-shackle body and screw pin blanks
2Quench and temper heat treatment to achieve required hardness and toughness
3Machining of the pin thread and body bore to precise JIS dimensions
4Assembly of the screw pin and nut with proper thread engagement
5Surface treatment via electric galvanizing or custom finish
6Embossing of working load limit and size on the shackle body
7Proof load testing and final inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches before release
- Dimensional tolerance check against published JIS size table
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection for surface defects, thread integrity, and finish uniformity
- Working load limit and size marking verified for legibility and accuracy
- Material Test Certificate to EN 10204 3.1 supplied on request
- Third-party inspection accepted at warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the shackle body
- Private label and OEM marking available
- Surface finish to order: electric galvanized, zinc plated, powder coated, or electrophoretic black
- Sizes beyond 50mm available upon request
- Packing configuration tailored to 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 shackle with cotter pin | The nut and screw pin design allows for repeated tightening and adjustment in the field, while a cotter pin is a one-time installation and harder to inspect for loosening |
| Pin with safety pin and cotter | The screw pin with nut offers better load retention under vibration and is easier to inspect than a safety pin that can loosen or be missed during checks |
| Welded shackles | Drop-forged shackles have higher fatigue resistance and impact strength compared to welded types, which can fail at the weld point under dynamic loads |
| Screw pin shackles without galvanizing | Electric galvanizing extends service life in humid or marine environments, while bare steel may corrode quickly under similar conditions |
Use Guide
How To Use And Inspect Shackles for Rigging
- Verify the embossed working load limit matches the calculated load before use
- Ensure the screw pin is fully threaded and tightened with a wrench before lifting
- Check that the pin is fully seated and the nut is secure to prevent accidental release
- Inspect the shackle body and pin for deformation, cracks, or wear before each use
- Avoid side loading the shackle; keep the load aligned with the bow of the D
- Replace the shackle if the marking is illegible, the pin is stripped, or the body shows permanent deformation
Related Products
Often Ordered With This Item
Drop Forged Roller Shackle with Hexagon Bolt Pin and Nut, Sheave / Pulley D Shackle
Crosby Wide Body Shackles
G2160 Shackle Crosby Wide Body Shackles
Wide Body Shackle Crosby G-2160
Lugless Joining Shackle - Kenter Link - End Shackle -Swivel Set
Kenter Link - Joining / End Shackle -Swivel Set
Kenter Shackle - Anchor Chain Fittings
Screw Pin Chain Shackle D Type
Browse The Category
Industries Using This Product
Sourcing Support For This Product
Guides Worth Reading Before You Order
Answers
Shackles for Rigging FAQ
What is the safety factor on these shackles?
A standard 4:1 design factor is used, so the minimum breaking load is four times the safe working load.
Are these shackles JIS compliant?
Yes. These are JIS standard screw pin chain shackles with dimensions and performance aligned to JIS specifications.
Can you supply Material Test Certificates?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with each order.
What surface finishes are available?
Standard finish is electric galvanized. Custom finishes include zinc plating, powder coating, and electrophoretic black.
Can you make sizes larger than 50mm?
Yes. Sizes beyond 50mm are available upon request and can be built to your drawing.
How are they packed for export?
Standard packing is cartons or gunny bags on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack.
Can you stamp our brand and custom tonnage?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options.
Need A Quote On Shackles for Rigging
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.