Turnbuckles
Closed Turnbuckle DIN 1478 Hook and Eye Pipe Body
A closed pipe body turnbuckle with hook and eye ends at each end, conforming to DIN 1478. It provides adjustable tension in rigging systems using a threaded barrel and hand-tightened wing nuts. The body is made from cold-drawn seamless steel tube, and the ends are drop forged. Available in sizes from M6 to M36 with working load limits from 230 kg to 4800 kg. Suitable only for tension applications.
- Size
- M6-M36 Tips: Only suitable for use in tension
- Material
- Cold-drawn Seamless Steel Tube
- Type
- Jaw End, Eye End, Hook End Process: Drop Forged Surface: Hot Dipped Galvanized
- Packing
- Cartons or Gunny Bags and then on Pallets
- Catalogue Family
- Turnbuckles
- 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 Closed Turnbuckle DIN 1478 Hook and Eye Gives You
- Adjustable tension in rigging systems without requiring disassembly or rethreading
- Closed pipe body prevents debris entry and protects the internal threads
- Drop-forged hook and eye ends offer high strength and impact resistance
- Cold-drawn seamless steel tube body ensures uniform wall thickness and consistent load capacity
- Hot-dipped galvanized finish resists corrosion in outdoor and marine environments
- Standardized DIN 1478 dimensions allow interchangeability with other certified rigging components
- Single unit replaces multiple fittings in tensioning systems, reducing part count and assembly time
Application Scenarios
Where Closed Turnbuckle DIN 1478 Hook and Eye Is Used
- Tensioning guy wires on temporary steel structures and scaffolding
- Adjusting cable tension in crane jib systems and boom support lines
- Securing load restraints on flatbed trailers and transport trailers
- Marine mooring systems where corrosion resistance and reliable tension control are critical
- Shipbuilding and offshore platform assembly where rigging must withstand dynamic loads
- Construction site rigging for temporary hoists and lifting platforms
- Industrial equipment alignment where precise tension adjustment is needed
Who It Is For
Buyers This Product Is Built For
- Rigging contractors sourcing standardized turnbuckles for construction and infrastructure projects
- Marine and offshore service providers specifying corrosion-resistant tensioning hardware
- Truck and trailer manufacturers building load securing systems
- Industrial plant maintenance teams replacing worn or damaged turnbuckles
- Equipment integrators building custom rigging kits with consistent DIN-compliant parts
- Procurement engineers requiring a single supplier for multiple rigging components
Problems It Solves
Problems This Product Removes
- Inconsistent tension in rigging systems due to loose or poorly adjusted fittings
- Thread damage from debris entering open-ended turnbuckles during outdoor use
- Need to source hook and eye ends from separate suppliers, increasing lead time and complexity
- Lack of corrosion protection in standard black steel turnbuckles used in wet or salty environments
- Inability to adjust tension without disconnecting and reconnecting the rigging line
- Non-standardized dimensions causing fitment issues between components from different suppliers
Technical Features
Technical Features
- Closed pipe body made from cold-drawn seamless steel tube
- Hook and eye ends drop forged for strength and impact resistance
- Threaded barrel with hand-tightened wing nuts for tension adjustment
- DIN 1478 standard compliance for interchangeability and safety
- Hot-dipped galvanized surface finish for corrosion resistance
- Working load limit stamped on the body for traceability
- Designed for tension only — not suitable for shear or bending loads
Specifications
Closed Turnbuckle DIN 1478 Hook and Eye Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Standard | DIN 1478 |
|---|---|
| End Types | Hook and Eye |
| Body Type | Closed Pipe Body |
| Material | Cold-drawn Seamless Steel Tube |
| Process | Drop Forged Ends, Cold Drawn Body |
| Surface Finish | Hot Dipped Galvanized |
| Capacity Range | 230 kg to 4800 kg safe working load |
| Size Range | M6 to M36 thread size |
| M6 Dimensions | L1 110 L2 88 L3 58 φ1 15 φ2 11.2 φ3 6 A 8 M 6 S.W.L 230 kg |
| M8 Dimensions | L1 110 L2 105 L3 65 φ1 17 φ2 14 φ3 8 A 10 M 8 S.W.L 440 kg |
| M10 Dimensions | L1 125 L2 125 L3 75 φ1 21 φ2 16 φ3 8 A 12 M 8 S.W.L 440 kg |
| M12 Dimensions | L1 125 L2 145 L3 85 φ1 25 φ2 18 φ3 10 A 16 M 10 S.W.L 600 kg |
| M16 Dimensions | L1 170 L2 170 L3 100 φ1 30 φ2 22.8 φ3 10 A 20 M 12 S.W.L 800 kg |
| M20 Dimensions | L1 200 L2 184 L3 115 φ1 34 φ2 27 φ3 12 A 24 M 16 S.W.L 1650 kg |
| M24 Dimensions | L1 255 L2 214 L3 130 φ1 42 φ2 32 φ3 12 A 30 M 20 S.W.L 2600 kg |
| M30 Dimensions | L1 255 L2 251 L3 140 φ1 51 φ2 38 φ3 16 A 36 M 24 S.W.L 3400 kg |
| M36 Dimensions | L1 295 L2 300 L3 170 φ1 63.5 φ2 50 φ3 16 A 45 M 28 S.W.L 4800 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
- Cold-drawn seamless steel tube for the pipe body with uniform wall thickness
- Drop-forged alloy steel for hook and eye ends to resist impact and fatigue
- Hot-dipped galvanized coating applied after forging for long-term corrosion protection
- Threaded barrel made from the same cold-drawn steel with precision machining
Manufacturing Process
How This Product Is Made
1Cold drawing of seamless steel tube for the body
2Drop forging of hook and eye ends from alloy steel
3Heat treatment of forged ends for improved strength and ductility
4Machining of threads and barrel bore to DIN 1478 tolerances
5Assembly of body and ends with wing nuts
6Hot-dip galvanizing of the complete unit
7Proof load testing and final inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches to verify working load limit
- Dimensional tolerance check against DIN 1478 size tables
- Visual inspection for surface defects, coating uniformity, and thread integrity
- Thread engagement and rotation check to ensure smooth adjustment
- Working load limit stamped on the body for traceability
- Material Test Certificate to EN 10204 3.1 supplied with orders on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for traceability
- Private label and OEM marking available
- Surface finish options: hot-dipped galvanized, zinc plated, powder coated, or electrophoretic black
- Custom thread sizes and body lengths built to a supplied drawing
- Packing configuration adjusted for carton count, pallet pattern, or retail pack
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-ended turnbuckle | The closed body prevents debris entry and protects threads but is less accessible for inspection and cleaning |
| Threaded rod with nuts | The turnbuckle allows continuous tension adjustment without disassembly, while a rod and nut system requires repeated loosening and retightening |
| Adjustable link chain | The turnbuckle provides smoother, more precise tension control and is lighter than a chain system for the same load |
| Screw link with eye ends | The turnbuckle has a more robust body and better thread protection, but the screw link allows for greater length adjustment |
Use Guide
How To Use And Inspect Closed Turnbuckle DIN 1478 Hook and Eye
- Use only in tension — do not apply bending or shear loads
- Ensure both ends are fully engaged with the anchor point or rigging component
- Tighten wing nuts evenly to avoid cross-threading or misalignment
- Check the turnbuckle for free rotation and smooth adjustment before each use
- Inspect the galvanized coating for damage and replace if corrosion is visible
- Retire the unit if the body shows deformation, threads are stripped, or the marking is illegible
Related Products
Often Ordered With This Item
HD Turnbuckle Jaw Jaw, Heavy Duty Turnbuckles
Stainless Steel Turnbuckle H/E, H/H, E/E
Aluminum Body Turnbuckle Hook and Eye Alu Closed Body
Aluminum Turnbuckles Eye and Eye Alu Closed Body
Aluminum Turnbuckle Hook and Hook Alu Closed Body
Wire Rope Turnbuckle Commercial Type Malleable Steel
Turnbuckles hook and hook Commercial Type Malleable Steel
Galvanized Turnbuckle Eye/Eye Commercial Type Malleable Steel
Browse The Category
Industries Using This Product
Sourcing Support For This Product
Answers
Closed Turnbuckle DIN 1478 Hook and Eye FAQ
Is this turnbuckle suitable for shear or bending loads?
No. It is designed for tension only. Do not use in applications where bending or shear forces are present.
What standard does this turnbuckle follow?
It conforms to DIN 1478 for dimensions, strength, and interchangeability.
Can I get a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with every order on request.
What is the surface finish?
Standard finish is hot-dipped galvanized. Custom finishes include zinc plated, powder coated, or electrophoretic black.
Can I get custom thread sizes or lengths?
Yes. Custom thread sizes and body lengths can be built to a supplied drawing.
How are they packed for export?
Standard packing is cartons on pallets. We can configure carton count and pallet pattern to match your warehouse or retail pack.
What is the lead time?
Lead time is evaluated from several angles before confirmation. Production lead time is not specified in the facts provided.
Need A Quote On Closed Turnbuckle DIN 1478 Hook and Eye
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.