Spring Snap Hooks and Quick Links
S Hook
A galvanized or stainless steel S hook with a straight body and closed end, designed for secure attachment in rigging and load control. Sizes range from 2.5mm to 12mm in diameter, with corresponding body lengths from 20mm to 120mm. Available in zinc-plated or stainless steel finish for corrosion resistance in outdoor and marine environments.
- Catalogue Family
- Spring Snap Hooks and Quick Links
- 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 S Hook Gives You
- Closed end design prevents accidental disengagement under load
- Galvanized or stainless steel finish resists rust and corrosion in humid or marine environments
- Straight body provides a clean, predictable load path without sharp bends
- Compact size reduces bulk in rigging systems and tie-down kits
- Standardized dimensions allow for consistent fit with other rigging hardware
- Available in multiple sizes from 2.5mm to 12mm diameter to suit light to medium duty applications
Application Scenarios
Where S Hook Is Used
- Securing cargo straps and ratchet tie-downs on trailers and trucks
- Attaching lifting slings and webbing to load points in construction and industrial settings
- Connecting winch lines and anchor points in off-road recovery operations
- Holding safety lines and temporary rigging in marine and offshore deck setups
- Mounting tags, labels, or small tools in maintenance and inspection systems
Who It Is For
Buyers This Product Is Built For
- Logistics and transport companies sourcing tie-down hardware for fleet operations
- Construction firms specifying rigging components for crane and lifting tasks
- Marine contractors equipping vessels and offshore platforms with corrosion-resistant fittings
- Industrial maintenance teams needing reliable attachment points for safety and tooling
- Rigging distributors carrying a standard hook range for general-purpose use
Problems It Solves
Problems This Product Removes
- Accidental disengagement of hooks due to open or weak end design
- Corrosion and failure of hooks in wet or salty environments
- Inconsistent sizing across suppliers leading to mismatched hardware
- Need to source hooks from multiple suppliers for different sizes and finishes
- Lack of traceability or material verification in low-cost hook purchases
Technical Features
Technical Features
- Closed end S hook with straight body for secure load retention
- Galvanized or stainless steel construction for environmental resistance
- Standardized dimensions with measurable body length and diameter
- Available in sizes from 2.5mm to 12mm diameter with matching body lengths
- Weight provided per 100 pieces for bulk handling and cost estimation
- Finish options: zinc plating or stainless steel as standard
- Marking of size and material type on the hook body for field identification
Specifications
S Hook Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Size Range | 2.5mm to 12mm diameter |
|---|---|
| Body Length | 20mm to 120mm |
| Material | Galvanized steel or stainless steel |
| Finish | Zinc plated or stainless steel |
| Weight | 0.17kg to 15kg per 100 pieces |
| 2.5mm Dimensions | B 6 C 3 D 2.5 L 20 mm N.W. 0.17 kg/100pcs |
| 3mm Dimensions | B 7 C 3.5 D 3 L 25 mm N.W. 0.3 kg/100pcs |
| 5mm Dimensions | B 14 C 6 D 5 L 45 mm N.W. 1.52 kg/100pcs |
| 10mm Dimensions | B 25 C 13 D 10 L 100 mm N.W. 12.6 kg/100pcs |
| 12mm Dimensions | B 30 C 15 D 12 L 120 mm N.W. 15 kg/100pcs |
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
- Galvanized carbon steel for corrosion resistance in outdoor and industrial use
- Stainless steel (AISI 304 or equivalent) for marine and high-moisture environments
- Zinc plating applied to steel for enhanced surface protection
- Material thickness and diameter matched to the specified size and load capacity
Manufacturing Process
How This Product Is Made
1Cutting of steel wire to length based on size specification
2Bending of the wire into S shape using precision forming tools
3Galvanization or stainless steel finishing process applied
4Inspection of the closed end for integrity and alignment
5Weighing and packaging by 100-piece batches
6Labeling of each batch with size, material, and finish
Quality Control
Quality Control On Every Batch
- Visual inspection of the closed end for cracks or misalignment
- Dimensional check against published size table for B, C, D, L
- Weight verification per 100-piece batch
- Material consistency confirmed by supplier documentation
- Finished hooks inspected for surface defects after plating or finishing
Customisation
Customisation Options
- Custom tonnage stamping on the hook body
- Private label and OEM marking available
- Custom finish including zinc plating, powder coating, or electrophoretic black
- Custom size and shape built to a supplied drawing
- Custom carton and pallet packing configuration
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 end hook | The closed end prevents accidental disengagement but adds manufacturing cost and slightly reduces the opening width |
| Swivel hook | The S hook is simpler and lighter but lacks rotation, which may cause line twist in dynamic applications |
| Snap hook | The S hook has no spring mechanism and is not self-locking, so it requires a separate securing method if used in high-vibration environments |
| Eye bolt | The S hook is more flexible for temporary attachment but does not provide a fixed anchor point like a threaded eye bolt |
Use Guide
How To Use And Inspect S Hook
- Ensure the closed end is fully formed and undamaged before use
- Match the hook size and material to the load and environmental conditions
- Do not exceed the rated size for the application; use the diameter and length as reference
- Inspect for deformation or corrosion before each use, especially after exposure to salt or moisture
- Avoid side loading the hook; apply force along the axis of the body
- Retire the hook if the closed end shows signs of opening or the body is bent
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Browse The Category
Sourcing Support For This Product
Answers
S Hook FAQ
What finishes are available for the S hook?
Galvanized steel or stainless steel. Zinc plating for general use, stainless steel for marine or high-corrosion environments.
Can you custom stamp our company name or logo?
Yes. Custom tonnage stamping, private label marking, and OEM branding are available on request.
What is the weight per 100 pieces for the 10mm size?
The 10mm S hook weighs 12.6 kg per 100 pieces.
Are these hooks suitable for lifting applications?
They are designed for rigging and tie-down use, not for direct lifting. Use only with proper lifting hardware rated for the load.
Can you supply custom sizes not listed?
Yes. Custom sizes and assemblies can be built to a drawing or specification.
How are the hooks packed for export?
Standard packing is 100 pieces per carton. We can configure carton count and pallet pattern to suit your warehouse or retail needs.
Do you provide material test certificates?
Material Test Certificates to EN 10204 3.1 are available on request with each order.
Need A Quote On S Hook
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.