Shackles
G210 Shackle US Type Screw Pin Chain / D Shackles
A drop-forged carbon steel D shackle with a screw pin made from alloy steel, designed for straight-line lifting and connecting chain, rope, or cable components. It meets US Federal Specification G-210 and is available from 3/16" to 2-1/2" nominal size with safe working load limits stamped on each unit. The body is made from super carbon steel, heat-treated and quenched, with a screw pin of alloy steel for enhanced strength and fatigue resistance. Standard finishes include hot-dipped galvanizing, powder coating, or
- 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 G210 Shackle US Type Screw Pin Chain Gives You
- Drop-forged super carbon steel body with quench and temper treatment for high impact and fatigue resistance
- Alloy steel screw pin with a safety nut and cotter pin hole to prevent loosening under vibration
- Standard 4:1 design factor with optional 6:1 for high-duty applications, ensuring reliable load handling
- Safe working load stamped directly on the body for traceability and field verification
- Hot-dipped galvanized, powder coated, or zinc plated finish for corrosion resistance in marine and outdoor environments
- Straight-line pull design ensures load is applied along the shackle’s axis, minimizing bending stress
- Versatile connection point for chain, wire rope, and single-leg web slings in industrial and marine settings
Application Scenarios
Where G210 Shackle US Type Screw Pin Chain Is Used
- Connecting chain links in a lifting system on a construction site where repeated loading and vibration occur
- Securing heavy machinery or equipment during transport using chain and a single-leg web sling
- Marine applications such as mooring lines or anchor connections where saltwater exposure demands corrosion protection
- Industrial rigging setups in steel plants or shipyards where chain is used to lift and move heavy components
- Agricultural equipment rigging where chain shackles link trailers, implements, or lifting frames
- Temporary lifting points on cranes or hoists where a reliable, field-verified connection is needed
Who It Is For
Buyers This Product Is Built For
- Industrial rigging contractors sourcing consistent, stamped shackles for lift plans and safety audits
- Marine equipment suppliers specifying corrosion-resistant shackles for mooring and anchor systems
- Transport and logistics fleets using chain-based tie-downs for securing cargo on flatbeds
- Manufacturers of lifting slings and rigging kits requiring standardized D shackles for assembly
- Construction site supervisors needing traceable, stamped shackles that meet US Federal Spec G-210
Problems It Solves
Problems This Product Removes
- Need for a reliable, field-verified connection between chain segments or chain and lifting sling
- Risk of screw pin loosening under vibration during transport or lifting operations
- Lack of traceability in shackles where safe working load is not visibly marked
- Corrosion damage in outdoor or marine environments due to inadequate surface protection
- Inconsistent quality from multiple suppliers when sourcing shackles for a single project
- Requirement to meet US Federal Specification G-210 for procurement compliance in government or military projects
Technical Features
Technical Features
- Drop-forged body in super carbon steel, quenched and tempered for strength and toughness
- Alloy steel screw pin with threaded end and safety nut for secure connection
- Screw pin with cotter pin hole to prevent accidental disengagement
- Standard 4:1 design factor; 6:1 available on request for high-duty applications
- Safe working load stamped on the body for immediate field identification
- Hot-dipped galvanized, powder coated, or zinc plated finish as standard
- Straight-line pull design only—side loading or bending loads are not recommended
Specifications
G210 Shackle US Type Screw Pin Chain 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 stamped on each shackle |
|---|---|
| Material | Body - Super carbon steel, Pin - Alloy steel |
| Processing | Drop forged, quenched and tempered |
| Design Factor | 4:1 standard, 6:1 available on request |
| Surface Finish | Hot-dipped galvanized, powder coated, or zinc plated |
| Screw Pin Type | Alloy steel with safety nut and cotter pin hole |
| Standard | US Federal Specification G-210 |
| WLL Marking | Stamped on the body for traceability |
| Dimensions | A, B, C, E, G, K, d, and L as per table in source text |
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 for high tensile strength and impact resistance
- Alloy steel screw pin for improved fatigue life and resistance to loosening
- Hot-dipped galvanized coating for long-term corrosion protection in harsh environments
- Powder coat finish for durability and aesthetic uniformity in industrial settings
- Zinc plating for moderate corrosion resistance and cost-effective protection
Manufacturing Process
How This Product Is Made
1Drop forging of the shackle body and screw pin blanks
2Quench and temper heat treatment of the body and pin for enhanced strength
3Machining of the pin threads and body bore to precise tolerances
4Assembly of the screw pin with safety nut and cotter pin hole
5Surface finishing via hot-dip galvanizing, powder coating, or zinc plating
6Stamping of safe working load and size on the body
7Final inspection and packing 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 or 6:1 design factor
- Visual inspection for surface defects, thread integrity, and finish uniformity
- Material Test Certificate to EN 10204 3.1 supplied on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for client-specific load ratings
- Private label and OEM marking available for brand integration
- Finish selection: hot-dipped galvanized, powder coated, or zinc plated
- Custom packing configuration in cartons or gunny bags on pallets
- Special size or assembly built to a supplied drawing
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 shackle with bolt pin | The screw pin version allows faster field connection and disconnection, but the bolt pin with nut and cotter is more resistant to vibration loosening |
| Welded chain link | The shackle provides a reusable, inspectable connection point, while a welded link is permanent and cannot be removed without cutting |
| Screw pin shackle with plain pin | The alloy steel pin in this model offers higher fatigue strength and resistance to deformation under repeated loading |
| Screw pin shackle with plastic insert | This model uses a metal pin with no plastic components, so it performs better in high-temperature or abrasive environments |
Use Guide
How To Use And Inspect G210 Shackle US Type Screw Pin Chain
- Only use the shackle in straight-line pulls—avoid side loading or bending forces
- Verify the stamped safe working load matches the calculated load before use
- Inspect the screw pin for thread wear, bending, or deformation before each use
- Ensure the cotter pin is installed and properly seated to prevent accidental disengagement
- Check the body for cracks, elongation, or deformation after heavy use or impact
- Retire the shackle if the marking is illegible, the pin is damaged, or the body shows permanent deformation
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Answers
G210 Shackle US Type Screw Pin Chain FAQ
What is the design factor for this shackle?
Standard 4:1; 6:1 is available on request for high-duty applications.
Can the safe working load be customized and stamped?
Yes. Custom tonnage stamping is available on request, and the WLL is stamped directly on the body.
What finishes are available?
Standard finishes are hot-dipped galvanized, powder coated, or zinc plated. Custom finishes can be arranged.
Is this shackle compliant with US Federal Specification G-210?
Yes. The G210 shackle is manufactured to meet US Federal Specification G-210 for screw pin chain shackles.
Can you provide a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with each order.
How are the shackles packed for export?
Shackles are packed in cartons or gunny bags, then palletized. Custom packing configurations are available to suit warehouse or retail needs.
What sizes are available?
Sizes range from 3/16" to 2-1/2" nominal size, with safe working load limits stamped on each unit. Full dimensions are listed in the product table.
Need A Quote On G210 Shackle US Type Screw Pin Chain
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