Turnbuckles
American Open Body Eye & Eye Turnbuckle (Double Eye Type) — Eye & Eye (1/4 - WLL 0.18T)
Heavy-duty American open-body turnbuckle, 1/4" size, eye-and-eye ends, rated WLL 0.18 ton (180 kg). Galvanized finish—compact yet high-strength for precision tensioning of wire rope, chain or rod in industrial and architectural systems.
Request a Quote1. Product Overview
This is an industrial-grade American open-body eye-and-eye turnbuckle (rigging turnbuckle / turnbuckle body) with closed double-eye (Eye & Eye) end fittings at both ends. Nominal size is 1/4 inch with a working load limit (WLL) of 0.18 tons (180 kg). Unlike light-duty JIS turnbuckles used for low-load tensioning, this unit is built to US-standard high-strength rigging practice. Though compact at 1/4", its safe working capacity is significantly higher. Rotating the open center frame drives opposite-hand threaded rods to extend or retract together for precise straight-line tensioning of wire rope, chain or tie rods. Full-surface corrosion protection suits industrial tension systems, architectural cable bracing and medium-duty permanent tie-down.
2. Key Features & Design Highlights
- American open-body frame: Classic open oval body with a clear window to inspect thread engagement on both rods—helps verify safe thread length during install and routine inspection.
- Opposite-hand threads: Left and right internal threads in the frame—turn the body clockwise or counter-clockwise to tighten or loosen both ends simultaneously.
- Eye & Eye closed ends: Forged fixed eyes at both ends for stable connections to shackles, quick links or wire rope ferrules; smooth bore reduces wear and resists accidental disengagement under sway or vibration.
- 1/4" size, WLL 0.18T: Nominal 1/4" body with US-standard alloy or carbon steel and controlled heat treatment—delivers 180 kg WLL in a small footprint, well above typical light-duty turnbuckles of the same size.
- Galvanized finish: Electro-galvanized or hot-dip zinc coating gives bright silver corrosion protection with even plating that preserves smooth thread engagement without binding.
- High safety margin: Designed with US-standard safety factors (typically 4:1 or 5:1 minimum breaking ratio) to handle gust loads and sustained tension in outdoor service.
3. Primary Applications
- Industrial wire rope and cable tension systems—plant guard nets, conveyor-side barriers and precision wire rope stays.
- Outdoor shade sails, tensile membrane edges and architectural cable bracing on commercial and residential structures.
- Stage truss guy lines, exhibition booth diagonal bracing and heavy outdoor banner perimeter tensioning.
- Mid-size boat and yacht rail cable tuning, deck lashings and mast auxiliary stay adjustment (non primary lifting).
4. Specifications
| Product Type | American open-body eye & eye turnbuckle |
|---|---|
| End Fittings | Eye & Eye (double eye) |
| Standard Reference | US standard open-body high-strength type |
| Nominal Size | 1/4" |
| Working Load Limit (WLL) | 0.18 T (0.18 TON / 180 kg) |
| Material & Process | Quality steel, formed, heat treated and precision threaded |
| Finish | Electro-galvanized or hot-dip galvanized (bright silver) |
| Adjustment | Center body rotation, opposite-hand threads |
Safety Guidelines
- Not for heavy lifting—WLL is 0.18 ton only. Do not use as a crane hook terminal, overhead hoist assembly or manned lift component. Select larger US-standard turnbuckles for heavy lifting service.
- Maintain adequate thread engagement—keep at least about 1.5× thread diameter of rod inside the body when extended; never load with only a few threads engaged.
- Lubricate threads periodically in outdoor, coastal or chemical environments to prevent seizure and ensure future adjustment.
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