Turnbuckles
Turnbuckle M20 Hook/Eye/Jaw
A turnbuckle with M20 metric thread size, available in hook, eye, or jaw end configurations, designed for adjusting tension in cables, ropes, rods, and tensioning systems. Made from carbon steel, malleable steel, or stainless steel, it is suitable for applications requiring reliable load adjustment and secure connection points. Dimensions are standardized for M20 thread compatibility across rigging and structural systems.
- Size
- M6-M48 Surface: Galvanized Process: Forged / Casting
- Material
- Carbon / Malleable / Stainless Steel
- Type
- Hook / Eye / Jaw
- 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 Turnbuckle M20 Hook Gives You
- Adjusts cable and rod tension precisely without requiring disassembly of the system
- Available in hook, eye, or jaw end types to match various connection points and mounting requirements
- Forged construction in carbon steel eliminates casting defects like porosity for higher reliability
- Malleable steel version offers good ductility and impact resistance for moderate-duty applications
- Stainless steel option provides corrosion resistance in harsh or marine environments
- Galvanized surface finish resists rust and extends service life in outdoor or humid conditions
- Standardized M20 thread size ensures compatibility with common rigging hardware and fittings
Application Scenarios
Where Turnbuckle M20 Hook Is Used
- Tensioning guy wires on communication towers and radio masts where consistent load balance is critical
- Adjusting sail rigging on sailboats using a combination of hook and eye ends for secure attachment
- Maintaining tension in overhead power lines and distribution cables using threaded rod ends or jaw fittings
- Securing netting and mesh systems in industrial fencing, safety barriers, or cargo containment
- Fine-tuning tension in suspension bridge support cables or temporary rigging setups during construction
- Connecting components in industrial machinery where adjustable length and load transfer are required
Who It Is For
Buyers This Product Is Built For
- Telecommunications and utility companies installing or maintaining tower guy wires
- Marine contractors outfitting sailboats and offshore platforms with adjustable rigging
- Construction firms managing temporary structures and scaffolding with tensioned cables
- Industrial equipment manufacturers integrating adjustable tensioning into machinery frames
- Rigging distributors stocking versatile turnbuckles for mixed end-use applications
- Fleet and logistics operators securing cargo nets and trailer tie-down systems
Problems It Solves
Problems This Product Removes
- Inconsistent cable tension leading to sagging or overloading in fencing and structural systems
- Difficulty in adjusting length without disconnecting and reassembling the entire rigging line
- Use of low-strength or defective cast components that fail under dynamic or cyclic loads
- Corrosion damage in outdoor or marine environments due to uncoated or poorly finished steel
- Mismatched end fittings requiring multiple hardware types for a single application
- Lack of standardization in thread size causing delays in procurement and assembly
Technical Features
Technical Features
- M20 metric thread size on both ends for consistent and repeatable adjustment
- Available in hook, eye, or jaw end configurations to suit different connection types
- Constructed from carbon steel (forged), malleable steel (cast), or stainless steel (option)
- Galvanized surface finish for corrosion resistance in outdoor and wet environments
- Standardized dimensions ensure compatibility with M20-threaded components and fittings
- Threaded rod ends allow direct connection to other threaded hardware or brackets
- Jaw ends provide secure pin or bolt attachment for dynamic or high-vibration applications
Specifications
Turnbuckle M20 Hook Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Thread Size | M20 |
|---|---|
| End Types | Hook, Eye, Jaw, Hook and Eye, Jaw and Eye, Threaded Rod |
| Material | Carbon Steel (Forged), Malleable Steel (Cast), Stainless Steel |
| Surface Finish | Galvanized |
| Process | Forged or Casting |
| Dimensions | 1480 mm (overall length, as per source) |
| Capacity Range | Not specified in source |
Materials
Materials And Finishes
- Carbon steel for forged turnbuckles, heat-treated for strength and impact resistance
- Malleable steel cast from master steel, offering good ductility and fatigue resistance
- Stainless steel for marine or high-corrosion environments, with no galvanizing required
- Galvanized coating applied after fabrication to resist rust and environmental wear
Manufacturing Process
How This Product Is Made
1Raw material selection based on required strength and environment
2Forging of carbon steel blanks or casting of malleable steel components
3Machining of M20 threads and end fittings to precise tolerances
4Galvanizing process to apply corrosion-resistant coating
5Inspection of thread integrity and dimensional accuracy
6Final assembly and marking of end type and thread size
7Packing in cartons or gunny bags, then palletized for shipment
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches to verify structural integrity
- Dimensional tolerance checking against published size table
- Breaking strength validation to confirm design factor compliance
- Visual inspection for surface defects, coating uniformity, and thread quality
- Material Test Certificate to EN 10204 3.1 supplied with orders
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for traceability and compliance
- Private label and OEM marking available for brand-specific packaging
- Custom surface finish including zinc plating, powder coating, or electrophoretic black
- Custom end configurations built to a supplied drawing
- Packing carton and pallet configuration tailored to warehouse or retail needs
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 |
|---|---|
| Malleable steel turnbuckle | Forged carbon steel has higher strength and impact resistance, eliminating casting porosity, but is more expensive and less ductile |
| Stainless steel turnbuckle | Better for corrosive environments but more costly and lower tensile strength than carbon steel |
| Threaded rod with nuts | Simpler setup but lacks the adjustability and compactness of a turnbuckle with integrated threads |
| Eye-to-eye turnbuckle | Provides fixed length adjustment; a jaw or hook version allows more flexible connection options |
Use Guide
How To Use And Inspect Turnbuckle M20 Hook
- Match the turnbuckle's rated capacity to the calculated load, not the equipment rating
- Ensure both ends are properly secured with pins, bolts, or fasteners before applying load
- Turn both ends equally to maintain alignment and avoid side loading
- Inspect the galvanized coating regularly for damage in corrosive environments
- Use a torque wrench to tighten connection hardware to recommended values
- Retire the turnbuckle if threads are stripped, the body shows deformation, or the finish is compromised
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
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Answers
Turnbuckle M20 Hook FAQ
What does M20 mean on a turnbuckle?
M20 refers to the metric thread size, meaning the thread diameter is 20 mm, ensuring compatibility with other M20 components.
Can I use a turnbuckle with a hook and eye end?
Yes. A hook and eye end allows flexible connection between different types of fittings, such as anchoring to a ring and attaching to a pin or bolt.
Is the forged version stronger than the malleable one?
Yes. Forged carbon steel eliminates casting defects like porosity and offers higher tensile strength and impact resistance compared to malleable steel.
What surface finishes are available?
Standard finish is galvanized. Custom finishes include zinc plating, powder coating, and electrophoretic black, available on request.
Do you supply Material Test Certificates?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with each order upon request.
Can you customize the end type or size?
Yes. Custom end configurations, including jaw, eye, hook, or threaded rod, can be built to a drawing. Sizes from M6 to M48 are available.
How are the turnbuckles packed for export?
Standard packing is in cartons or gunny bags, then palletized. We can configure carton count and pallet pattern to suit your warehouse or retail requirements.
Need A Quote On Turnbuckle M20 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.