Turnbuckles
US Type Drop Forged Turnbuckle Stub end HG-251
A drop-forged three-piece turnbuckle assembly with left-hand and right-hand threaded body, designed to adjust tension or remove slack in rigging systems without lifting. It consists of two stub end fittings and a central body, with the body rotated to draw both ends in simultaneously. Suitable for lashing, towing, and structural support applications. Available in carbon steel or stainless steel with hot-dipped galvanizing, from 1/4"x4" to 2-3/4"x24" size, with working load limits from 400 lbs to 34,000 lbs and a 5:
- Size
- From 1/4"x4" to 2-3/4x24
- Material
- Carbon Steel / Stainless Steel Surface: Hot Dipped Galvanized W.L.L: From 400 lbs Tons to 34000 lbs
- 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 US Type Drop Forged Turnbuckle Stub End HG-251 Gives You
- Adjusts tension or removes slack in rigging systems by rotating the body only, without requiring disassembly
- Drop-forged construction in carbon steel or stainless steel provides high strength and impact resistance
- Left-hand and right-hand threading on the body ensures both stub ends are drawn in simultaneously
- Hot-dipped galvanized finish resists corrosion in outdoor and marine environments
- 5:1 safety factor ensures reliable performance under dynamic load conditions
- Compact design reduces space and weight compared to separate tensioning hardware
- Available in multiple sizes and materials to suit lashing, towing, and structural support needs
Application Scenarios
Where US Type Drop Forged Turnbuckle Stub End HG-251 Is Used
- Towing and securing heavy machinery on flatbed trailers using adjustable tie-downs
- Tensioning guy wires and support cables on temporary structures and scaffolding
- Adjusting length and tension in steel tie rods for industrial equipment or building frames
- Securing cargo on ocean-going containers where vibration and movement require constant tension adjustment
- Marine dockside operations where corrosion resistance and reliable tensioning are critical
- Offshore platform maintenance where rigging must be adjusted in harsh environments
Who It Is For
Buyers This Product Is Built For
- Logistics and freight operators managing cargo securement on intermodal containers
- Construction companies installing temporary structures requiring adjustable support
- Marine and offshore contractors handling mooring and anchoring systems
- Industrial maintenance teams adjusting tension in mechanical and structural assemblies
- Rigging distributors offering a complete range of turnbuckle solutions with multiple configurations
- Truck and trailer manufacturers specifying lashing hardware for fleet safety compliance
Problems It Solves
Problems This Product Removes
- Need to adjust rigging tension without disconnecting or reassembling the system
- Lack of a compact solution for removing slack in tie-downs and support cables
- Corrosion damage in outdoor or marine environments due to inadequate surface protection
- Inconsistent tension across both ends of a rigging line due to mismatched threading
- Over-reliance on multiple separate fittings to achieve tension adjustment and connection
- Inadequate safety factor in low-cost turnbuckles leading to premature failure under load
Technical Features
Technical Features
- Three-piece assembly: two stub end fittings and a dual-threaded turnbuckle body
- Left-hand thread on one end, right-hand thread on the opposite end for balanced adjustment
- Drop-forged body in carbon steel or stainless steel for high strength and durability
- Hot-dipped galvanized surface finish for corrosion resistance in harsh environments
- 5:1 safety factor with minimum breaking load five times the stated working load limit
- Working load limit stamped on the body for traceability and field identification
- Stub end fittings threaded opposite to match the body’s dual threading
- Designed for tension adjustment and slack removal, not for direct lifting
Specifications
US Type Drop Forged Turnbuckle Stub End HG-251 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Material | Carbon steel or stainless steel |
|---|---|
| Surface Finish | Hot-dipped galvanized |
| Safety Factor | 5:1 minimum breaking load to safe working load |
| Thread Type | Left-hand and right-hand threaded body |
| Size Range | 1/4"×4" to 2-3/4"×24" |
| Body Type | Stub end to stub end |
| Application | Lashing, towing, structural support, tension adjustment |
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
- Drop-forged carbon steel body for high tensile strength and impact resistance
- Stainless steel option for use in corrosive environments such as marine or chemical processing
- Hot-dipped galvanizing layer to protect against rust and weathering
- Threaded stub end fittings made from the same material as the body for consistent performance
- Galvanized coating applied after forging to ensure full coverage and adhesion
Manufacturing Process
How This Product Is Made
1Drop forging of the turnbuckle body and stub end blanks
2Heat treatment to enhance strength and durability
3Machining of internal threads and external surfaces
4Assembly of the dual-threaded body with two stub end fittings
5Hot-dip galvanizing of the complete assembly
6Proof load testing and working load limit stamping
7Final inspection and packing
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size tables
- Breaking strength validation to confirm the 5:1 design factor
- Visual inspection for coating defects, thread damage, or forging flaws
- Material Test Certificate to EN 10204 3.1 issued with the order 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 for brand-specific packaging
- Surface finish options: hot-dipped galvanized, stainless steel, or custom powder coating
- Sizes and thread configurations built to a supplied drawing
- Packing configurations adjusted for carton count, pallet pattern, or retail display
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 |
|---|---|
| Eye-to-eye turnbuckle | The stub end version is more compact and better suited for fixed connection points, while eye-to-eye allows for more flexible attachment angles |
| Screw pin shackle | The turnbuckle provides continuous tension adjustment without disassembly, whereas a shackle requires re-threading or re-tightening for each change |
| Adjustable rod end | The turnbuckle offers higher strength and better load distribution across the body, while rod ends are more limited in adjustment range |
| Rigid tie rod | The turnbuckle allows for on-site length adjustment and tensioning, whereas a rigid rod must be cut or replaced for fit changes |
Use Guide
How To Use And Inspect US Type Drop Forged Turnbuckle Stub End HG-251
- Use only for tension adjustment and slack removal, not for lifting or hoisting
- Rotate the body clockwise to tighten and counterclockwise to loosen
- Ensure both stub ends are fully engaged in the body to prevent slippage
- Check that the galvanized coating is intact and free of damage before use
- Do not exceed the stamped working load limit under any condition
- Inspect for thread wear, coating damage, or deformation before each use
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
Guides Worth Reading Before You Order
Answers
US Type Drop Forged Turnbuckle Stub End HG-251 FAQ
Is this turnbuckle rated for lifting?
No. It is designed for tension adjustment and slack removal, not for direct lifting or hoisting. Use a certified lifting shackle or rigging hook for lifting applications.
What safety factor does it have?
A standard 5:1 safety factor, so the minimum breaking load is five times the stated safe working load.
Can I get a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with every order.
What sizes are available?
Sizes range from 1/4"×4" to 2-3/4"×24". The full size table includes dimensions, weight, and working load limits for each configuration.
Can I get custom stamping or branding?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are available upon request.
How is it packed for export?
Standard packing is cartons or gunny bags on pallets. We can configure the carton count and pallet pattern to match your warehouse or retail requirements.
What finish options are available?
Standard finish is hot-dipped galvanized. Stainless steel and custom powder coating are also available by request.
Need A Quote On US Type Drop Forged Turnbuckle Stub End HG-251
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.