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The UNI 5587 Thick Hex Nuts are high-performance industrial fasteners specifically engineered for applications demanding exceptional clamping force and superior structural integrity. Designed with an increased height and expanded wrenching surfaces, these nuts ensure maximum load distribution and enhanced thread engagement, making them the ideal choice for heavy-duty mechanical assemblies where standard nuts may fail under extreme stress.
Manufactured from premium Carbon Steel and Stainless Steel, our UNI 5587 nuts conform to rigorous international standards to provide unmatched durability in high-vibration and dynamic load environments. Whether utilized in seismic bracing, wind energy turbines, or offshore platforms, these fasteners offer the critical reliability needed to maintain secure connections and reduce long-term maintenance costs in the most challenging industrial settings.
| Material Options | Carbon Steel / Stainless Steel (A2-70, A4-70, A4-80) | Standard Compliance | UNI 5587 |
|---|---|---|---|
| Strength Levels | Grade 8, 10, 12 | Size Range | M3 to M80 |
| Surface Finishes | ZP, HDG, Black, Dacromet, etc. | Thread Types | Coarse Pitch & Fine Pitch |
| Wrenching Surface | Increased Hex Size for Higher Torque | Key Feature | Enhanced Load Distribution |
| Compatibility | European & International Metric Bolts/Studs | Application | Structural, Marine, Heavy Machinery |
The increased height distributes clamping force over a wider area, reducing stress on mating threads and connected parts.
Deeper thread engagement significantly prevents self-loosening caused by shock, vibration, or thermal cycling.
Produced under stringent quality controls to ensure consistent mechanical properties and dimensional accuracy.
Larger across-flats size allows for more accurate torque application and easier installation in tight scenarios.
Available in Hot-Dip Galvanized and Stainless Steel to withstand harsh outdoor and marine environments.
Fully compliant with UNI and Metric specifications for seamless integration into international projects.
Deeply cultivating the fastener industry for three decades, serving over 10,000 global customers.
Our 20,000 sqm factory achieves an annual output exceeding 60,000 tons of high-quality fasteners.
ISO9001, ISO14001, and ISO45001 certified, ensuring global standards in every batch.
Proven export record to 38 countries with dedicated support for EU anti-dumping compliance.
Up to 2,000 tons of spot goods available for hot-selling products to ensure rapid delivery.
Eliminate intermediaries with manufacturer pricing and full OEM/ODM customization support.
| Comparison Metric | Standard Hex Nuts | UNI 5587 Thick Nuts |
|---|---|---|
| Clamping Force | Standard | Maximum (Enhanced) |
| Vibration Stability | Moderate | High (Deep Engagement) |
| Maintenance Frequency | Higher | Significantly Lower |
| Tooling Accessibility | Standard Grip | Improved Wrenchability |
| Service Lifespan | Regular | Extended Long-term Life |
The UNI 5587 Thick Hex Nut features an increased height and larger wrenching surface, allowing for higher torque application and superior load distribution compared to standard nuts.
For marine or offshore applications, we recommend Stainless Steel A4-70 or A4-80, or Hot-Dip Galvanized (HDG) coatings for maximum corrosion resistance.
To ensure optimal performance and prevent thread stripping, always pair the nut with a bolt of an equal or compatible strength class (e.g., Class 10 nut with a Class 10.9 bolt).
Yes, they are specifically designed for structural steel construction, including bridges, building frames, and seismic bracing systems due to their high load capacity.
Yes, all our products are produced to strict international quality standards, and full material certifications and traceability reports are available upon request.
Standard delivery usually takes 30-35 days after receiving the deposit. For custom specifications, the timeline may vary slightly based on the complexity of the requirements.
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