Shackles
Lifting D Shackles, US Type Screw Pin Chain Shackle G210
A US type screw pin lifting D shackle made from drop-forged super carbon steel body with an alloy steel screw pin, heat-treated and quenched for strength. It features a 4:1 or 6:1 safety factor, with working load limit embossed on the body. Available from 3/16" to 2-1/2" nominal size, it connects chains, ropes, or slings securely in lifting and rigging applications. The body is hot dipped galvanized, powder coated, or zinc plated for corrosion resistance.
- Size
- From 3/16"to 2-1/2" WLL ,Size embossed on each shackle
- Material
- Body-Super Carbon Steel. Screw Pin-Alloy Steel
- Finish
- Body-Hot Dipped Galvanized / Powder Coated / Zinc Plated
- 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 Lifting D Shackles Gives You
- Drop-forged super carbon steel body with quench and temper treatment ensures high impact strength and fatigue resistance
- Alloy steel screw pin with threaded engagement provides secure locking under dynamic loads
- 4:1 or 6:1 safety factor as standard, with WLL stamped directly on the shackle for traceability
- Hot dipped galvanized, powder coated, or zinc plated finish resists rust and wear in harsh environments
- Screw pin design allows for quick connection and disconnection in field use without tools
- US type configuration ensures compatibility with standard chain and rigging hardware
- Embosed WLL on the body allows immediate verification of safe load without reference documents
Application Scenarios
Where Lifting D Shackles Is Used
- Connecting chain links in heavy-duty lifting operations on construction sites and industrial plants
- Securing synthetic or wire rope slings to lifting points in crane and hoist systems
- Attaching anchor chains to mooring points on marine vessels and offshore platforms
- Linking rigging components in temporary structures and load-bearing assemblies
- Field maintenance and repair where quick disassembly and reassembly are required
- Transport and logistics operations involving heavy cargo secured with chain and shackle systems
Who It Is For
Buyers This Product Is Built For
- Construction contractors specifying rigging hardware for crane lifts and structural assembly
- Marine and offshore operators equipping mooring and anchoring systems with durable shackles
- Logistics and freight companies securing cargo with chain and shackle connections
- Industrial maintenance teams needing reliable, field-serviceable rigging fasteners
- Rigging distributors stocking a standard range of screw pin shackles with clear WLL marking
- Manufacturers of lifting and rigging kits requiring consistent, traceable components
Problems It Solves
Problems This Product Removes
- Inconsistent or missing WLL marking on shackles leading to unsafe load assumptions
- Pin loosening under vibration due to inadequate locking mechanism in standard screw pins
- Corrosion damage in outdoor or marine environments due to poor surface finish
- Lack of traceability in rigging components when replacing or auditing equipment
- Need to source shackles and pins from separate suppliers, increasing procurement complexity
- Inability to verify safety factor or material grade without third-party documentation
Technical Features
Technical Features
- Drop-forged super carbon steel body with quench and temper heat treatment
- Alloy steel screw pin with threaded engagement and locking nut
- Standard 4:1 or 6:1 safety factor, depending on application and size
- Working load limit embossed on the shackle body for immediate field identification
- US type configuration with threaded pin and nut for secure connection
- Hot dipped galvanized, powder coated, or zinc plated finish on the body
- Tolerance on dimensions as per the provided table, with +0.06” to +0.25” depending on size
Specifications
Lifting D Shackles Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 3/16” to 2-1/2” nominal size, WLL from 0.11T to 71.75T |
|---|---|
| Material | Body - Super carbon steel, Pin - Alloy steel |
| Processing | Drop forged, quenched and tempered |
| Safety Factor | 4:1 or 6:1 standard |
| Surface Finish | Hot dipped galvanized, powder coated, or zinc plated |
| WLL Marking | Embossed on the body for traceability |
| Dimensions | A, B, C, E, G, K, and overall length as per the provided table |
| Tolerance | +0.06” to +0.25” depending on size |
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
- Super carbon steel body drop forged and heat-treated for high tensile strength
- Alloy steel screw pin with precision threading for secure engagement
- Hot dipped galvanized coating for long-term corrosion resistance in outdoor use
- Powder coat or zinc plating as alternative finishes for specific environments
- Stainless steel nut or washer available on request for saltwater service
Manufacturing Process
How This Product Is Made
1Drop forging of the U-shaped body and screw pin blanks
2Quench and temper heat treatment of the body and pin
3Machining of the pin threads and body bore
4Assembly of the screw pin with nut and final torque check
5Surface finishing by hot dipped galvanizing, powder coating, or zinc plating
6Embossing of the working load limit and size on the body
7Proof load testing and dimensional verification before packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against the published size table
- Breaking strength validation to confirm the 4:1 or 6:1 safety factor
- Visual inspection for surface defects, cracks, or finish flaws
- 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 for specific WLL requirements
- Private label and OEM marking for brand-specific packaging
- Finish selection in hot dipped galvanized, powder coated, or zinc plated
- Custom size and pin 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 |
|---|---|
| Rigid bolt pin shackle | The screw pin allows for field disassembly and reassembly but requires regular inspection to prevent loosening |
| Screw pin with cotter pin | The nut-locked screw pin offers better retention under vibration than a cotter pin, which can shear or fall out |
| Screw pin with split pin | The nut-locked version is more secure and reusable, while a split pin is a one-time use locking method |
| Welded shackle | The drop-forged construction provides higher impact strength and fatigue resistance than welded joints |
Use Guide
How To Use And Inspect Lifting D Shackles
- Verify the embossed WLL matches the calculated load before use
- Ensure the screw pin is fully threaded and the nut is tightened to prevent loosening
- Inspect the shackle for deformation, thread wear, or finish damage before each use
- Avoid side loading the shackle; keep the load aligned with the pin axis
- Do not use if the pin shows signs of galling or thread stripping
- Retire the shackle if the body shows permanent deformation or the WLL marking is illegible
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Screw Pin Chain Shackle D Type
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Answers
Lifting D Shackles FAQ
What safety factor does this shackle have?
Standard 4:1 or 6:1 safety factor, depending on size and application. The factor is confirmed through proof load testing and breaking strength validation.
Is the working load limit stamped on the shackle?
Yes. The WLL is embossed directly on the body for immediate field identification and traceability.
What finishes are available?
The body is available in hot dipped galvanized, powder coated, or zinc plated. Custom finishes can be arranged 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, with full batch traceability.
What sizes are available?
Sizes range from 3/16” to 2-1/2” nominal size. The full dimensions and WLL are listed in the provided table.
How are the shackles 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 needs.
Can you customize the tonnage marking and branding?
Yes. Custom tonnage stamping, private label marking, and OEM packing are standard options, with finish and size built to your drawing if needed.
Need A Quote On Lifting D Shackles
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.