Tie Down Hardware
WELDED BUCKLE 40mm/50mm
A welded one-way lashing buckle in high strength steel with a zinc coated finish, designed for repeated use in container and load lashing applications. Available in 40mm and 50mm widths, it connects directly to 40mm or 50mm webbing or strap. The welded joint provides a solid, permanent connection that maintains integrity under dynamic loads. Breaking load is 10,000 kg, with a safe working load of 5,000 kg. Weight is 360 grams. Standard marking includes BS:5000KG/11000LBS.
- Catalogue Family
- Tie Down Hardware
- 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 Welded Buckle 40mm Gives You
- Welded joint eliminates loose parts and reduces failure risk compared to bolted or riveted fittings
- Zinc coated surface resists corrosion in outdoor and marine environments
- High strength steel body supports repeated use without degradation if no distortion occurs
- One-way design allows quick connection and secure locking under load
- Compatible with both 40mm and 50mm webbing or strap for flexible application
- 360 gram weight keeps the system lightweight for field handling
- Safe working load of 5,000 kg marked on the body for traceability and compliance
Application Scenarios
Where Welded Buckle 40mm Is Used
- Container lashing on flatbed trailers where multiple tie-down points require a durable, reusable connection
- Heavy cargo securing in ports and logistics hubs where repeated loading and unloading occur
- Industrial transport of machinery and equipment requiring secure, long-term restraint
- Construction site material handling where webbing must be connected across multiple anchor points
- Marine cargo securing where exposure to salt and moisture demands corrosion-resistant hardware
Who It Is For
Buyers This Product Is Built For
- Logistics and freight forwarders managing containerized cargo with high-volume lashing needs
- Trucking and transport operators specifying durable, reusable lashing hardware for fleet use
- Ports and terminal operators requiring standardized, repeatable lashing solutions
- Manufacturers of lashing kits and tie-down systems integrating reusable components
- Rigging suppliers sourcing high-strength, corrosion-resistant buckles for industrial applications
Problems It Solves
Problems This Product Removes
- The need to replace disposable or single-use lashing fittings after each load cycle
- Corrosion damage on uncoated steel buckles in humid or marine environments
- Loose or failed connections from bolted or riveted joints under vibration and repeated use
- Inconsistent fit between webbing and buckle due to mismatched width or profile
- Lack of traceable safe working load marking on generic hardware
- Multiple suppliers needed for buckles, straps, and hooks when a single integrated system is required
Technical Features
Technical Features
- Welded joint construction for permanent, high-strength connection
- High strength steel body with zinc coating for corrosion resistance
- One-way lashing mechanism for secure, one-directional locking
- Compatible with 40mm and 50mm webbing or strap
- Safe working load of 5,000 kg marked on the body
- Breaking load of 10,000 kg confirmed by testing
- Weight: 360 grams
- Standard marking: BS:5000KG/11000LBS
Specifications
Welded Buckle 40mm Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Breaking Load | 10,000 kg |
|---|---|
| Width | 40mm and 50mm |
| Material | High strength steel |
| Surface Finish | Zinc coated |
| Joint Type | Welded |
| Weight | 360 grams |
| Marking | BS:5000KG/11000LBS |
| Compatibility | 40mm and 50mm webbing or strap |
Materials
Materials And Finishes
- High strength steel body for load-bearing integrity
- Zinc coating applied to the surface for corrosion resistance
- Welded joint using a continuous fusion process to eliminate mechanical fasteners
Manufacturing Process
How This Product Is Made
1Cutting of steel blanks to size
2Welding of the buckle body and end fittings
3Zinc coating application via hot-dip or electroplating process
4Inspection of weld integrity and surface finish
5Marking of safe working load and standard reference
6Proof load testing and packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Visual inspection of weld quality and surface coating
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 10,000 kg minimum
- Working load limit marking stamped on the body for traceability
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body
- Private label and OEM marking available
- Custom surface finish including zinc plating or powder coating
- Custom size and configuration built to a supplied drawing
- Custom carton and pallet packing for warehouse or retail use
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 |
|---|---|
| Bolted lashing buckle | Welded version has no loose parts and higher resistance to vibration-induced failure, but cannot be disassembled for repair |
| Riveted lashing buckle | Welded joint provides stronger load transfer and better fatigue resistance, but is not reusable if damaged |
| Single-use plastic buckle | Steel welded buckle allows repeated use and higher load capacity, but is heavier and more expensive upfront |
| Snap hook with webbing | Buckle offers a more secure, permanent connection with less risk of accidental disengagement |
Use Guide
How To Use And Inspect Welded Buckle 40mm
- Verify the stamped safe working load matches the calculated load before use
- Ensure the webbing is fully seated in the buckle channel before tightening
- Inspect for distortion, cracks, or coating damage before each use
- Do not use if the weld shows signs of failure or the buckle has been deformed
- Avoid side loading or twisting the buckle during tensioning
- Retire the buckle if the marking is illegible or the body shows permanent deformation
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Answers
Welded Buckle 40mm FAQ
Is this buckle reusable after a load cycle?
Yes, if there is no visible distortion, deformation, or damage to the weld or coating, it can be reused for subsequent loads.
Can it be used with both 40mm and 50mm webbing?
Yes, the buckle is designed to accommodate both 40mm and 50mm webbing or strap.
What is the breaking load and safe working load?
The breaking load is 10,000 kg. The safe working load is 5,000 kg, marked as BS:5000KG/11000LBS on the body.
Is the surface finish corrosion resistant?
Yes, the zinc coating provides corrosion resistance suitable for outdoor and marine environments.
Can you custom stamp a different tonnage or add a brand logo?
Yes, custom tonnage stamping and private label or OEM marking are available upon request.
How are the buckles packed for export?
Standard carton packing on pallets. We can configure carton count and pallet pattern to match your warehouse or retail requirements.
Do you offer third-party inspection before shipment?
Yes, third-party inspection is accepted at our Qingdao warehouse before shipment, and we handle all export documentation in house.
Need A Quote On Welded Buckle 40mm
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.