Shackles
Screw Pin Chain Shackle D Type
A D-type shackle with a threaded screw pin that allows quick attachment and detachment in lifting and rigging applications. Made from carbon steel or stainless steel, drop forged for strength, with a 3:1 safety factor and electric galvanized finish. Sizes range from M5 to M50 with working load limits from 80 kg to 8000 kg.
- 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 Screw Pin Chain Shackle D Type Gives You
- Threaded screw pin enables fast and secure connection without requiring a separate pin tool
- Drop forged carbon steel or stainless steel body provides high tensile strength and impact resistance
- Electric galvanized surface finish resists corrosion in humid and outdoor environments
- 3:1 safety factor ensures reliable performance under rated load conditions
- D-type bow design offers a compact profile with good load distribution across the shackle body
- Easy to inspect and maintain due to visible pin engagement and clear marking
- Available in sizes M5 to M50 to match a wide range of rigging and lifting tasks
Application Scenarios
Where Screw Pin Chain Shackle D Type Is Used
- Lifting and rigging in construction sites where quick setup and disassembly are needed
- Marine and offshore applications where corrosion resistance and reliable connection matter
- Towing and recovery operations requiring a secure, easily adjustable shackle
- Industrial maintenance where equipment is frequently connected and disconnected
- General purpose rigging in manufacturing and warehouse environments
- Temporary installations where a shackle must be reused across multiple jobs
Who It Is For
Buyers This Product Is Built For
- Construction site supervisors specifying rigging hardware for lifting operations
- Marine contractors needing corrosion-resistant shackles for deck and mooring use
- Towing and recovery service providers building toolkits for field use
- Industrial maintenance teams managing equipment handling and rigging
- Rigging distributors carrying a full range of shackles who need a reliable, versatile product
Problems It Solves
Problems This Product Removes
- Need for a shackle that can be quickly connected and disconnected without tools
- Risk of pin loss or misalignment with open pin shackles in dynamic or vibrating environments
- Corrosion damage on shackles used in damp or salt-exposed areas
- Lack of a standard shackle with a consistent safety factor across sizes
- Inconsistent marking or traceability in low-cost imported shackles
- Buying shackles and pins as separate items from different suppliers
Technical Features
Technical Features
- D-type bow body made from drop forged carbon steel or stainless steel
- Threaded screw pin with head for hand tightening and engagement
- 3:1 safety factor applied to all sizes unless otherwise specified
- Electric galvanized surface finish for corrosion protection
- Working load limit stamped on the body for field traceability
- Dimensions include B, D, L, d/d1 for size identification and fit verification
- Available in sizes M5 to M50 with corresponding WLL and weight per piece
Specifications
Screw Pin Chain Shackle D Type Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 80 kg to 8000 kg safe working load |
|---|---|
| Material | Carbon steel or stainless steel |
| Process | Drop forging |
| Surface Finish | Electric galvanized |
| Safety Factor | 3:1 minimum |
| Size Range | M5 to M50 |
| WLL at M5 | 80 kg |
| WLL at M50 | 8000 kg |
| Weight at M5 | 0.014 kg |
| Weight at M50 | 11.5 kg |
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
- Drop forged carbon steel body for high strength and fatigue resistance
- Stainless steel option available for use in corrosive environments
- Electric galvanized coating applied after forging to resist rust and moisture
- Threaded screw pin made from hardened steel to prevent thread stripping
- Pin head designed for hand tightening without tools
Manufacturing Process
How This Product Is Made
1Raw material billets prepared for drop forging
2Drop forging of the D-type body and screw pin blanks
3Heat treatment to improve strength and toughness
4Machining of threads on the screw pin and bore in the body
5Assembly of the screw pin into the body
6Electric galvanizing of the complete shackle
7Stamping of working load limit and size marking
8Inspection and 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 3:1 safety factor
- Visual inspection for surface defects, thread integrity, and finish quality
- 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 shackle body
- Private label and OEM marking available
- Surface finish to order: electric galvanized, powder coated, or electrophoretic black
- Sizes and dimensions built to a supplied drawing
- Packing configuration tailored to customer carton, gunny bag, or pallet 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 |
|---|---|
| Open Pin Shackle | The screw pin prevents accidental pin loss and is more secure under vibration, but requires more effort to install than an open pin |
| Screw Pin Anchor Shackle | This D-type shackle has a more compact profile and better load distribution than a round shackle, but the anchor shackle may have a larger pin for heavy-duty use |
| Rigid Bolt Pin Shackle | The screw pin allows for easier field adjustment and removal, but the bolt pin with nut is more resistant to back-off under continuous load |
| Welded Chain Link | The shackle provides a stronger, more reliable connection point than a welded link, but the link is lighter and more flexible for certain applications |
Use Guide
How To Use And Inspect Screw Pin Chain Shackle D Type
- Ensure the screw pin is fully tightened before applying any load
- Check the pin engages fully with the body threads and the head is flush
- Inspect the shackle for deformation, thread wear, or surface damage before each use
- Do not exceed the stamped working load limit for the size used
- Keep the shackle clean and dry; re-galvanize or replace if corrosion affects integrity
- Retire the shackle if the body shows bending, the pin threads are stripped, 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
Stainless Steel Shackles Bow Type
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Answers
Screw Pin Chain Shackle D Type FAQ
What is the safety factor on these shackles?
A standard 3:1 safety factor is applied, meaning the minimum breaking load is three times the stated safe working load.
Can the screw pin be tightened by hand?
Yes, the screw pin is designed to be tightened by hand using the head, but a wrench may be used for final torque if needed.
Are these shackles suitable for lifting applications?
Yes, they are rated for lifting and rigging with a 3:1 safety factor and are suitable for use in construction, marine, and industrial environments.
What finishes are available?
Standard finish is electric galvanized. Custom finishes include powder coating, electrophoretic black, and zinc plating 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.
What sizes are available?
Sizes range from M5 to M50, with working load limits from 80 kg to 8000 kg. Full dimensions and weights are listed in the product table.
How are they packed for export?
Standard packing is in cartons on pallets. We can also pack in gunny bags or configure carton and pallet patterns to match your warehouse or retail requirements.
Need A Quote On Screw Pin Chain Shackle D Type
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.