EN 14399-1 Preloaded Bolts – High-Strength HV Bolts for Steel Structures
Preloaded bolts according to EN 14399-1:2015 set the international standard for high-strength connections in steel structures. Also known as HV bolts or HV preloaded bolts, they are used where maximum strength and reliability are essential — such as in bridges, cranes, piling rigs, port cranes, and wind turbines.
Thanks to their controlled preloading and high tensile strength, EN 14399-1 bolts ensure safe and durable connections, crucial for critical construction and infrastructure projects.
European Quality – Manufactured in Germany
Production takes place in Germany at three leading K-class K1 factories: Fuchs, Friedberg, and Peiner.
These manufacturers work closely together to produce the highest quality preloaded bolts in the world. Each bolt and nut is marked with a LOT number on the head, ensuring full traceability of product certificates for many years.
After production, the bolts are hot-dip galvanized in accordance with the DSV-GAV guidelines, providing excellent corrosion protection. The corresponding preloaded nuts receive a special coating, recognized by their dark color. This coating guarantees a consistent friction coefficient, essential for achieving the correct preload during installation.
Fuchs & Kobout – Strong Partners in the Benelux
Kobout has a long-standing partnership with Fuchs, a German family-owned company with a strong reputation in bolt connections. Since June 2023, Kobout has been the official dealer of Fuchs preloaded bolts in the Benelux.
Through this partnership, Kobout offers a wide range of Fuchs preloaded bolts, along with EN 15048 bolts and nuts, available directly from stock. This allows us to deliver quickly and reliably to projects throughout the Netherlands, Belgium, and Luxembourg.
Also Available as Injection Bolts
In addition to standard preloaded bolts, Kobout also supplies injection bolts, produced from the same high-quality EN 14399-1 bolts. Injection bolts are used in steel structures where grouting or injection mortar is required for extra-strong connections.
View the full range on our injection bolts page.
Why Choose EN 14399-1 Preloaded Bolts from Kobout?
✅ Certified quality – Fully compliant with EN 14399-1:2015
🔩 German manufacturing by Fuchs
🧪 Hot-dip galvanized & coated for maximum durability
🚀 Available from stock in the Benelux
📝 Traceable through LOT numbers and certificates
Interested in Our EN 14399-1 Preloaded Bolts?
Contact Kobout today for expert advice, technical support or a no-obligation quote.
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