Tie Down Hardware
FLAT HOOK
A flat hook designed for ratchet straps and tie-down systems, available in sizes from 1 inch to 4 inches with working load limits from 1500KG to 8000KG. The hook is forged from carbon steel with a high tensile strength, engineered to resist deformation under repeated loading and secure cargo during transport. It features a straight, flat profile that mates with ratchet strap jaws and provides a stable anchor point on load-bearing surfaces.
- Size
- 4" FLAT HOOK, BS:8000KG/17600LBS 3" FLAT HOOK, BS:8000KG/17600LBS 2" FLAT HOOK, BS:5000KG/11000LBS 2" FLAT HOO
- 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 Flat Hook Gives You
- Straight flat profile ensures full engagement with ratchet strap jaws and prevents slippage during tensioning
- High tensile strength carbon steel body resists deformation under repeated loading and shock loads
- Clear working load limit stamped on the hook for traceability and safe operation
- Standard 4:1 design factor ensures minimum breaking load is four times the safe working load
- Smooth internal edges reduce wear on ratchet strap webbing and extend strap life
- Available in multiple sizes to match common ratchet strap widths and load requirements
- Zinc plated finish resists corrosion in outdoor and marine environments
Application Scenarios
Where Flat Hook Is Used
- Securing heavy machinery and industrial equipment on flatbed trailers during long-haul transport
- Tightening cargo on shipping containers using ratchet straps with consistent tension
- Stabilizing steel coils and pipes on pallets where a secure anchor point is needed
- Mounting tie-down systems on trucks and trailers for construction and logistics fleets
- Reinforcing load restraints in ports and warehouses where repeated use and exposure to weather occur
Who It Is For
Buyers This Product Is Built For
- Logistics and freight operators specifying tie-down hardware for commercial transport
- Truck and trailer fleet managers sourcing durable, consistent hardware for cargo safety
- Manufacturers of ratchet straps and tie-down kits needing reliable hook components
- Warehouse and port operators maintaining standardized cargo restraint systems
- Industrial contractors securing materials on site with reusable tie-down systems
Problems It Solves
Problems This Product Removes
- Ratchet strap slippage from poorly designed or deformed hooks that don’t engage fully
- Premature webbing failure due to sharp edges or uneven load distribution in the hook
- Inconsistent load limits across different hook models leading to unsafe rigging decisions
- Corrosion damage in outdoor or marine environments reducing hook lifespan
- Buying hooks from multiple suppliers with no standardization in size or marking
- Lack of traceability in load capacity when a hook fails during transport
Technical Features
Technical Features
- Drop forged carbon steel body for high tensile strength and impact resistance
- Flat profile designed to mate with ratchet strap jaws and prevent slippage
- Working load limit stamped on the hook body for field traceability
- Standard 4:1 design factor with minimum breaking load four times the safe working load
- Zinc plated surface finish for corrosion resistance in humid and outdoor conditions
- Straight shank with smooth internal edges to reduce webbing wear
- Available in sizes from 1 inch to 4 inches with matching load ratings
Specifications
Flat Hook Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 1500KG to 8000KG safe working load |
|---|---|
| Size Options | 1″, 2″, 3″, 4″ flat hook |
| Material | Drop forged carbon steel |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Surface Finish | Zinc plated standard, custom finishes available |
Materials
Materials And Finishes
- Drop forged carbon steel body for strength and durability under dynamic loads
- Zinc plated coating to resist rust and corrosion in outdoor and marine environments
- Smooth internal edges machined to prevent webbing abrasion
- Stainless steel cotter pin option available on request for high-corrosion service
Manufacturing Process
How This Product Is Made
1Drop forging of the carbon steel blank
2Heat treatment to improve tensile strength and impact resistance
3Machining of the flat profile and internal edges
4Zinc plating for corrosion protection
5Stamping of working load limit and size marking
6Proof load testing and 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 design factor
- Visual inspection for surface defects and plating 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 hook body
- Private label and OEM marking available
- Custom surface finish including zinc plating, powder coating, or electrophoretic black
- Custom size and shape built to a supplied drawing
- Packing configuration tailored to your carton 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 |
|---|---|
| Round hook | The flat hook provides better engagement with ratchet strap jaws and reduces slippage, but round hooks are easier to attach to loops and eyes |
| Screw pin hook | The flat hook has no moving parts and is less prone to loosening under vibration, but a screw pin allows for adjustable length and easier release |
| Standard forged hook | The flat profile improves jaw contact and load distribution, but a standard hook may be more versatile for general rigging |
| Soft hook | The steel flat hook resists abrasion and deformation on rough surfaces, but a soft hook is lighter and won’t damage painted or coated surfaces |
Use Guide
How To Use And Inspect Flat Hook
- Match the stamped working load limit to the calculated load, not the ratchet strap rating
- Ensure the hook is fully engaged with the ratchet strap jaw before tensioning
- Inspect the hook for deformation, cracks, or plating damage before each use
- Avoid side loading the hook; keep the pull aligned with the shank axis
- Replace the hook if the working load limit marking is illegible or the body shows permanent deformation
- Use a stainless steel cotter pin if the hook is used in high-corrosion environments
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Answers
Flat Hook FAQ
What is the working load limit for each size?
1″ flat hook: 1500KG, 2″ flat hook: 3000KG and 5000KG, 3″ flat hook: 8000KG, 4″ flat hook: 8000KG
Is the hook zinc plated?
Yes, zinc plating is standard. Custom finishes like powder coating or electrophoretic black are available
Can you provide a Material Test Certificate?
Yes, a Material Test Certificate to EN 10204 3.1 is supplied on request with every order
Can I get custom tonnage stamping?
Yes, custom tonnage stamping, private label marking, and OEM packing are standard options
What is the design factor?
A standard 4:1 design factor is used, so the minimum breaking load is four times the safe working load
How are the hooks packed for export?
Packed in cartons on pallets as standard. We can configure the carton count and pallet pattern to match your warehouse or retail pack
Can I hold goods in your warehouse?
Yes, goods can be stored in our Qingdao warehouse free of charge for up to two months while you consolidate shipments
Need A Quote On Flat 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.