Shackles
Safety Chain Shackle, Bolt Pin, Lifting D Shackles
A bolt-type D shackle with a removable bolt and nut, drop forged from super carbon steel body and alloy steel pin, designed for secure rigging connections in lifting and load securing. It features a 4:1 or 6:1 safety factor, hot dipped galvanized, powder coated, or zinc plated finish, and a stamped working load limit on the body. Available from 3/16" to 4" size range, it serves as a reliable link between chains, ropes, and slings in construction, maritime, and off-road recovery applications.
- 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 Safety Chain Shackle Gives You
- Drop forged super carbon steel body with quenched and tempered heat treatment for high impact resistance and load capacity
- Alloy steel bolt and nut provide superior tensile strength and resistance to loosening under vibration
- 4:1 or 6:1 safety factor ensures compliance with standard rigging safety margins
- Hot dipped galvanized, powder coated, or zinc plated finish resists corrosion in harsh outdoor and marine environments
- Stamped working load limit on the body enables quick field verification and traceability
- Removable bolt and nut allow for easy assembly and disassembly with hand tools in the field
- Secure bolt connection reduces risk of accidental disengagement compared to screw pin types
Application Scenarios
Where Safety Chain Shackle Is Used
- Construction site lifting operations where rigging links must withstand repeated dynamic loads and exposure to weather
- Marine and offshore rigging where saltwater corrosion resistance is critical for long-term service
- Off-road vehicle recovery setups using winch lines and chains where secure, high-strength connections are essential
- Industrial maintenance where equipment is lifted or moved using chain and sling systems
- Temporary rigging setups in infrastructure projects requiring quick assembly and reliable load transfer
Who It Is For
Buyers This Product Is Built For
- Construction contractors specifying rigging hardware for crane and hoist operations
- Marine and offshore service providers needing corrosion-resistant shackles for mooring and lifting
- Off-road recovery kit manufacturers building winch and chain systems for 4x4 vehicles
- Industrial maintenance teams replacing worn or damaged rigging links in heavy machinery
- Rigging distributors carrying a bolt-type shackle range with multiple finishes and safety factors
Problems It Solves
Problems This Product Removes
- Accidental disconnection of rigging links due to loose or unsecured screw pins in high-vibration environments
- Corrosion damage to shackles in outdoor or marine applications leading to premature failure
- Inconsistent safety margins when using shackles without stamped working load limits
- Difficulty in assembling or disassembling shackles in the field due to tight fit or seized pins
- Need for multiple shackle types when a single bolt-type design can serve both light and heavy-duty tasks
- Buying shackles from separate suppliers for different finishes, sizes, and safety factors
Technical Features
Technical Features
- Drop forged super carbon steel body with quenched and tempered heat treatment
- Alloy steel bolt and nut for high tensile strength and resistance to loosening
- Removable bolt with nut and optional cotter pin for secure closure
- Working load limit stamped on the body for traceability and field use
- 4:1 or 6:1 safety factor depending on application and load requirement
- Finish options: hot dipped galvanized, powder coated, or zinc plated
- Size range from 3/16” to 4” nominal diameter, with WLL embossed on each shackle
Specifications
Safety Chain Shackle Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 3/16” to 4” nominal size, WLL embossed on each shackle |
|---|---|
| Material | Body - Super carbon steel, Pin - Alloy steel |
| Processing | Drop forged, quenched and tempered |
| Safety Factor | 4:1 or 6:1 |
| Surface Finish | Hot dipped galvanized, powder coated, or zinc plated |
| Design Factor | 4:1 or 6:1 minimum breaking load to safe working load |
| Working Load Limit | Stamped on the body for traceability |
| Pin Type | Removable bolt with nut and optional cotter pin |
Materials
Materials And Finishes
- Super carbon steel body drop forged and heat treated for strength and durability
- Alloy steel bolt and nut for high tensile performance and resistance to fatigue
- Hot dipped galvanized coating for long-term corrosion protection in outdoor and marine use
- Powder coat or zinc plating as alternative finishes for visual and environmental protection
- Stainless steel cotter pin option available for saltwater or high-moisture service
Manufacturing Process
How This Product Is Made
1Drop forging of the shackle body and bolt blanks
2Quench and temper heat treatment of the body and pin
3Machining of the bolt thread and body bore
4Assembly of the bolt and nut with optional cotter pin
5Surface finishing by hot dipped galvanizing, powder coating, or zinc plating
6Stamping of working load limit and size on the body
7Proof load testing and final inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load test 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 for surface defects and finish uniformity
- 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 client-specific load ratings
- Private label and OEM marking for brand-specific packaging
- Finish to order in hot dipped galvanized, powder coated, or zinc plated
- Sizes and bolt configurations built to a supplied drawing
- Carton and pallet packing configured for warehouse or retail distribution
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 closure with nut and bolt, less prone to loosening under vibration than a screw pin |
| Safety pin shackle | Bolt-type offers higher strength and easier field inspection than a safety pin with cotter, but requires more effort to assemble |
| Bow shackle | D shackle has a more compact profile and higher strength in straight pull, while bow shackle offers better clearance for angled loads |
| Soft shackle | Steel bolt-type shackle handles abrasion and high loads better than a soft shackle, but is heavier and less flexible |
Use Guide
How To Use And Inspect Safety Chain Shackle
- Verify the stamped working load limit matches the calculated load, not the equipment rating
- Ensure the bolt is fully tightened with the nut and cotter pin installed before use
- Inspect the shackle for deformation, wear, or corrosion before every use
- Avoid side loading the shackle; keep the load aligned with the bow axis
- Check the bolt and nut for tightness after each use, especially after dynamic loads
- Retire the shackle if the body shows cracks, the bolt is stripped, or the marking is unreadable
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Answers
Safety Chain Shackle FAQ
What safety factor do these shackles have?
A standard 4:1 or 6:1 safety factor, depending on the application and load requirement, with minimum breaking load four or six times the safe working load.
Can I get a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with the order on request.
What finishes are available?
Options include hot dipped galvanized, powder coated, and zinc plated. Custom finishes are available upon request.
Is the working load limit stamped on the shackle?
Yes. The working load limit is embossed on the body of each shackle for traceability and field use.
Can I order custom sizes or drawings?
Yes. Custom sizes, bolt configurations, and assemblies built to a drawing are supported.
How are they packed for export?
Shackles are packed in cartons or gunny bags, then loaded on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail needs.
What is the size range?
Available from 3/16” to 4” nominal size, with WLL embossed on each shackle.
Need A Quote On Safety Chain Shackle
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.