Shackles
European Large D Shackle with Screw Collar Pin
A European-style large D shackle with a screw collar pin, designed for secure rigging and load attachment in heavy-duty industrial applications. The shackle features a loop body with a threaded pin secured by a nut or cotter pin, allowing for reliable connection and disconnection of chains, ropes, and slings. Available in sizes from M5 to M50, with working load limits from 80 kg to 8,000 kg, it meets standard safety factors and is suitable for construction, marine, transport, and lifting operations.
- Size
- M5-M50 Package: Carton/Gunny bag/Pallet / As customer's requirements
- Material
- Carbon Steel or Stainless Steel Process: Free Forging Surface: Electric galvanized
- 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 European Large D Shackle with Screw Collar Pin Gives You
- Screw collar pin with nut provides a secure closure that resists loosening under vibration and dynamic loads
- Free-forged carbon steel or stainless steel body ensures high strength and impact resistance
- Electric galvanized surface finish resists corrosion in humid and outdoor environments
- Standard 3:1 safety factor ensures reliable performance under working loads
- Wide loop opening allows easy threading of chains, ropes, and slings without interference
- Clear WLL marking on the body enables quick identification of load capacity
- Available in metric sizes from M5 to M50, supporting a broad range of rigging needs
Application Scenarios
Where European Large D Shackle with Screw Collar Pin Is Used
- Marine mooring and anchor line connections where corrosion resistance and secure pin retention are critical
- Heavy lifting operations in construction and infrastructure projects using chain or wire rope systems
- Cargo securing on trucks and trailers with chain or ratchet strap systems requiring durable fasteners
- Industrial rigging setups involving temporary connections between structural components or lifting points
- Lifting and moving heavy machinery where a reliable, reusable shackle with clear load rating is required
Who It Is For
Buyers This Product Is Built For
- Marine and offshore contractors specifying rigging hardware for mooring and anchoring systems
- Construction and crane operators sourcing shackles for lifting and rigging tasks
- Logistics and transport companies equipping trailers and cargo units with secure tie-down hardware
- Industrial maintenance teams replacing worn or damaged shackles in plant and equipment
- Rigging distributors carrying a full range of shackles who need a consistent European-style product
Problems It Solves
Problems This Product Removes
- Loose or backing-off pins in dynamic rigging environments due to vibration or repeated loading
- Corrosion damage on shackles used in outdoor or marine conditions without proper surface protection
- Inconsistent load ratings or unclear markings leading to overloading and safety risks
- Difficulty in threading chains or ropes through shackles with narrow or obstructed openings
- Need to source shackles from multiple suppliers due to lack of a single-source provider for metric European-style D shackles
- Inadequate safety factor in low-cost shackles that compromise load integrity
Technical Features
Technical Features
- Free-forged carbon steel or stainless steel body for high strength and durability
- Threaded screw collar pin with nut for secure closure and resistance to loosening
- Electric galvanized surface finish for corrosion protection in harsh environments
- Standard 3:1 safety factor between minimum breaking load and safe working load
- Clear WLL stamped on the body for traceability and field identification
- Loop-shaped body with wide opening for easy attachment of chains and slings
- Available in metric sizes from M5 to M50 with corresponding WLL and weight data
Specifications
European Large D Shackle with Screw Collar Pin Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Material | Carbon steel or stainless steel |
|---|---|
| Process | Free forging |
| Surface Finish | Electric galvanized |
| Safety Factor | 3:1 minimum breaking load to safe working load |
| Size Range | M5 to M50 |
| M5 Dimensions | d 5 D 10 a 19 b 11 c 10 mm weight 1.9 kg per 100 pcs |
| M10 Dimensions | d 10 D 19 a 38 b 20 c 19 mm weight 13 kg per 100 pcs |
| M20 Dimensions | d 20 D 38 a 76 b 40 c 38 mm weight 80 kg per 100 pcs |
| M32 Dimensions | d 32 D 64 a 127 b 73 c 64 mm weight 430 kg per 100 pcs |
| M50 Dimensions | d 50 D 102 a 200 b 108 c 102 mm weight 1,750 kg per 100 pcs |
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
- Free-forged carbon steel body for high tensile strength and impact resistance
- Stainless steel option available for use in corrosive or high-salt environments
- Electric galvanized coating applied to the forged body for enhanced corrosion protection
- Threaded screw collar pin made from hardened steel to resist wear and deformation
- Nut and cotter pin components to secure the pin in place under dynamic load
Manufacturing Process
How This Product Is Made
1Raw steel billets prepared for free forging
2Free forging of the D-shaped body and pin blanks
3Heat treatment to enhance strength and toughness
4Machining of the threaded pin and body bore
5Assembly of the pin and nut with cotter pin option
6Electric galvanizing of the finished shackle
7WLL stamping and final inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches to verify load capacity
- Dimensional tolerance check against published size table
- Surface finish inspection for uniformity and coverage
- WLL marking verification for legibility and accuracy
- Inspection of pin thread and nut fit for secure closure
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body to match specific load requirements
- Private label and OEM marking available for brand-specific packaging
- Surface finish options including electric galvanizing, powder coating, or electrophoretic black
- Custom sizes and pin configurations built to a supplied drawing
- Packing configurations tailored to customer warehouse or retail requirements
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 | The screw collar pin with nut offers better resistance to loosening under vibration than a standard screw pin, which may require frequent re-tightening |
| Bolt pin shackle | The screw collar pin is easier to install and remove with hand tools compared to a bolt pin with a nut and cotter pin, but the bolt pin may offer higher retention in extreme conditions |
| Rigid shackle with no pin | The threaded pin provides a secure closure that prevents accidental opening, unlike a rigid shackle with no pin which relies on external fasteners |
| Imperial D shackle | The European metric size system ensures compatibility with European and Asian equipment, while imperial sizes are used in North American applications |
Use Guide
How To Use And Inspect European Large D Shackle with Screw Collar Pin
- Always verify the stamped WLL matches the calculated load before use
- Ensure the pin is fully threaded and secured with the nut and cotter pin before loading
- Inspect the shackle for deformation, wear, or corrosion before each use
- Avoid side loading the shackle; keep the load aligned with the body’s axis
- Do not exceed the 3:1 safety factor; use the WLL as the maximum working load
- Retire the shackle if the body shows deformation, the pin is stripped, or the marking is illegible
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Answers
European Large D Shackle with Screw Collar Pin FAQ
What is the safety factor for these shackles?
A standard 3:1 safety factor is used, meaning the minimum breaking load is three times the stated safe working load.
Can I use this shackle in marine environments?
Yes, the electric galvanized finish provides corrosion resistance for marine and outdoor use. Stainless steel is also available for higher corrosion resistance.
Is the WLL stamped on the body?
Yes, the safe working load is clearly stamped on the shackle body for traceability and field identification.
Can you customise the size or finish?
Yes, custom sizes, tonnage stamping, private label marking, and surface finishes including powder coating or electrophoretic black are available.
What is the difference between this and a US-style D shackle?
This is a European-style metric D shackle with a screw collar pin, while US-style shackles often use different dimensions, thread types, and pin designs, making them non-interchangeable.
How are they packed for export?
Standard packing is in cartons, gunny bags, or on pallets. We can configure packing to your warehouse or retail requirements. Goods can be stored in our Qingdao warehouse free for two months.
What materials are available?
Carbon steel and stainless steel options are available. The standard finish is electric galvanized; powder coating and electrophoretic black are available on request.
Need A Quote On European Large D Shackle with Screw Collar Pin
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