Shackles
G2150 Shackle US Fed. Spec Safety Bolt Chain / D Shackle
A bolt-type D shackle designed to meet US Federal Specification G2150, made from drop-forged super carbon steel body with alloy steel pin, heat-treated for strength. It features a safety cotter pin mechanism to prevent accidental disengagement, with working load limits from 3/16" to 4" size range, stamped directly on the body. Standard 4:1 design factor, with optional 6:1 for high-stress applications. Available in hot-dipped galvanized, powder coated, or zinc-plated finishes.
- Size
- From 3/16"to 4" 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 G2150 Shackle US Fed Spec Safety Bolt Chain Gives You
- Bolt-type design allows for secure connection with a removable bolt and lock nut, reducing risk of accidental opening
- Safety cotter pin prevents pin loosening under vibration or dynamic load
- Drop-forged super carbon steel body with quench and temper treatment provides high tensile strength and impact resistance
- Standard 4:1 design factor with optional 6:1 for critical lifting tasks
- Working load limit stamped directly on the body for traceability and field verification
- Available in hot-dipped galvanized, powder coated, or zinc-plated finish for corrosion resistance in harsh environments
- Compact D-shape design offers a strong, space-efficient connection point in tight rigging setups
Application Scenarios
Where G2150 Shackle US Fed Spec Safety Bolt Chain Is Used
- Marine and offshore rigging where saltwater exposure demands corrosion-resistant finishes
- Construction site lifting operations requiring a secure, vibration-resistant shackle with visible WLL marking
- Off-road recovery systems where dynamic loads and shock forces require a robust bolt-type connection
- Industrial manufacturing where multiple shackles are used in a single rigging setup and traceability is required
- Heavy equipment transport where shackles must withstand repeated loading and environmental exposure
Who It Is For
Buyers This Product Is Built For
- Marine and offshore contractors sourcing US Federal Spec G2150 compliant rigging hardware
- Construction and infrastructure firms requiring traceable, stamped shackles with verified WLL
- Industrial equipment manufacturers building lifting systems with standardized, high-strength shackles
- Logistics and transport operators specifying durable shackles for trailer and container tie-downs
- Rigging distributors stocking bolt-type shackles with multiple finish options and clear load marking
Problems It Solves
Problems This Product Removes
- Accidental pin disengagement in dynamic lifting or recovery operations due to vibration
- Lack of visible working load limit marking on shackles leading to overloading risks
- Inconsistent material quality or heat treatment in low-cost shackles causing premature failure
- Corrosion damage in marine or outdoor environments due to inadequate surface protection
- Need to source shackles from multiple suppliers for different finishes, sizes, and certifications
- Inability to verify material strength or traceability in a rigging component used in safety-critical applications
Technical Features
Technical Features
- Drop-forged super carbon steel body with quench and temper heat treatment
- Alloy steel bolt pin with safety cotter pin for secure locking
- Standard 4:1 design factor, with 6:1 available upon request
- Working load limit stamped directly on the body for field identification
- Available in 3/16” to 4” size range with corresponding WLL values
- Finish options: hot-dipped galvanized, powder coated, or zinc plated
- Bolt-type design with removable bolt and lock nut for secure connection
Specifications
G2150 Shackle US Fed Spec Safety Bolt Chain Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 3/16” to 4” size range, WLL stamped on body |
|---|---|
| Material | Body: Super carbon steel, Pin: Alloy steel |
| Processing | Drop forged, quenched and tempered |
| Design Factor | 4:1 standard, 6:1 optional |
| Surface Finish | Hot-dipped galvanized, powder coated, or zinc plated |
| WLL Marking | Stamped directly on the body |
Materials
Materials And Finishes
- Super carbon steel body for high tensile strength and durability
- Alloy steel bolt pin for enhanced fatigue resistance and strength
- Stainless steel cotter pin to prevent seizing in salt or wet environments
- Hot-dipped galvanizing layer for long-term corrosion protection
- Powder coat or zinc plating for additional surface protection and aesthetic finish
Manufacturing Process
How This Product Is Made
1Drop forging of the shackle body and pin blanks
2Quench and temper heat treatment of the body and pin
3Machining of the bolt thread and pin bore
4Assembly of the bolt and safety cotter pin
5Surface finishing by hot-dip galvanizing, powder coating, or zinc plating
6Stamping of WLL and size on the 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 size table
- Breaking strength validation to confirm 4:1 or 6:1 design factor
- Visual and tactile inspection of the bolt thread and cotter pin fit
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for specific WLL requirements
- Private label and OEM marking available for brand integration
- Finish to order in hot-dipped galvanized, powder coated, or zinc plated
- Sizes and configurations built to a supplied drawing
- Packing configuration adjusted for carton count and pallet pattern to match 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 |
|---|---|
| Screw pin shackle | Bolt-type shackle has a more secure lock with a nut and cotter pin, reducing risk of accidental opening under vibration |
| Safety pin shackle | The bolt and nut system allows for higher torque and load retention, while the safety pin relies on a single cotter pin |
| D shackle with screw pin | The bolt-type design offers better resistance to loosening under dynamic loads and is easier to inspect for proper closure |
| Bow shackle | The D-shape provides a more compact profile and higher strength in axial loading, but less clearance for angled attachments |
Use Guide
How To Use And Inspect G2150 Shackle US Fed Spec Safety Bolt Chain
- Verify the stamped WLL matches the calculated load before use
- Ensure the bolt is fully tightened and the safety cotter pin is properly installed
- Inspect the shackle for deformation, wear, or corrosion before each use
- Do not use if the bolt thread is damaged or the pin shows signs of bending
- Avoid side loading the shackle; keep the load aligned with the shackle’s axis
- Retire the shackle if the body shows permanent deformation, the pin is loose, or the marking is unreadable
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
Answers
G2150 Shackle US Fed Spec Safety Bolt Chain FAQ
Is this shackle compliant with US Federal Spec G2150?
Yes, the G2150 shackle is specifically designed to meet the US Federal Specification G2150 for bolt-type D shackles.
What is the design factor for this shackle?
Standard 4:1 design factor; 6:1 is available upon request for high-stress applications.
Can the working load limit be customized or re-stamped?
Yes, custom tonnage stamping is available on request, and the WLL can be marked to your specification.
What finishes are available?
Available in hot-dipped galvanized, powder coated, or zinc-plated finishes, depending on the order.
Are Material Test Certificates provided?
Yes, a Material Test Certificate to EN 10204 3.1 is supplied with each order on request.
How are the shackles packed for export?
Packed in cartons or gunny bags, then palletized. We can adjust carton count and pallet pattern to suit your warehouse or retail pack.
Can I get a shackle with a different size or pin configuration?
Yes, custom sizes and pin configurations can be built to a supplied drawing or specification.
Need A Quote On G2150 Shackle US Fed Spec Safety Bolt Chain
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.