Safe bolted connections Constructions Applications | Nord-Lock® - Nord-Lock Group

Applications

Cranes and crane structure Secure crane components to prevent loosening and ensure operational safety.

Conveyor technology Prevent bolts from loosening under vibration in conveyor systems for reliable and continuous operation.

Noise barriers Stabilize structural joints in noise barriers under wind loads and vibration to ensure durability and performance.

Bridges Ensure joint integrity in bridges under high-stress conditions for long-lasting structural stability.

Heavy steel structures Reinforce critical connections in heavy steel structures to prevent loosening under extreme loads.

Facades Secure façade elements to prevent loosening and ensure long-term stability under environmental stress.

Earthquake areas Prevent bolt loosening in seismic zones to ensure stability and safety during earthquakes.

Towers and masts Maintain stability in towers and masts by preventing loosening caused by Oscillation excitation.

Customer success stories

Kundcase built to withstand vibrations and harsh weather for decades bLINK is secured by Nord-Lock washers to endure decades of vibrations, weather, and corrosion. Läs mer här

Kundcase Nord-Lock secures roof at Westfield Hamburg Überseequartier The hollow‑section roof at Westfield Hamburg posed challenges; Nord‑Lock washers proved the optimal solution. Läs mer här

Skruvsäkringstips Durable Bolted Joints in Steel Construction Nord-Lock’s experts share key insights to ensure durable, secure bolted joints in steel structures. Läs mer här

Kundcase Återuppbyggnad av bron i Genua Att på rekordtid konstruera en ny bro, för att ersätta den bro som rasade i Genua 2018, var ett verkligt högprofilerat projekt. Alla företag och leverantörer granskades noga – absolut inget fick gå... Läs mer här

Kundcase Increasing the capacity of Benteler Arena Fan safety in football stadiums has come a long way in recent decades, yet collapses and accidents still occur. Läs mer här

Kundcase Providing safety in huge steel constructions When durability and safety are critical, even small components like washers can make a major difference. Läs mer här

Kundcase Nord-Lock Group håller järnvägsindustrin på rätt spår Nord-Lock började användas inom järnvägsindustrin för cirka 20 år sedan och nu går det att hitta deras killåsningsbrickor i alla säkerhetsrelaterade områden, exempelvis boggier, kopplingsenheter,... Läs mer här

Kundcase Securing bridges over cooling water The Port of Rotterdam receives every year the visit of around 35,000 seagoing vessels and 130,000 inland vessels. Läs mer här

Kundcase Safety secures trust For more than 30 years, unsurpassed safety has been synonymous with the Nord-Lock Group. Läs mer här

Kundcase Höjden av säkerhet Om man bygger världens högsta fristående tv-torn i ett av världens mest jordbävningsdrabbade länder bör man inte använda något annat än de bästa materialen och de säkraste konstruktionslösningarna. Läs mer här

Frequently asked questions

How do I keep bolts from loosening in steel structures?

Use Nord-Lock steel construction washers. They use Nord-Lock’s wedge-locking technology, which keeps the bolt in place even under heavy vibration, movement, or dynamic loads. The connection stays secure without retightening.

We use HV/HR bolted connections — how can we avoid preload loss and installation issues?

Nord-Lock steel construction washers prevent preload loss, reduce installation errors, and eliminate the need for maintenance. They provide reliable performance where double nuts, pal nuts, or retightening often fail.

Am I allowed to use Nord‑Lock steel construction washers in EN 1090 projects?

Yes. Nord-Lock steel construction washers are designed specifically for EN 1090 and EN 14399 HV/HR bolt assemblies and can be used confidently in preloaded structural joints.

How difficult is it to install Nord-Lock steel construction washers on site?

Very easy. They require no special tools, ensure consistent preload, and are easy to install even in challenging on‑site conditions.

When should I choose Nord-Lock steel construction washers instead of standard Nord-Lock washers?

Use Nord-Lock steel construction washers when working with HV/HR bolts in structural steel applications which are supposed to dynamic loads or movements.

Which washer size fits my HV/HR bolts?

Simply match the washer size to your HV/HR bolt size (M12–M36). The Nord-Lock Steel Construction Dimension Guide makes a selection straightforward. Consider a Nord-Lock washer underneath the bolt head and the nut.

Are Nord-Lock steel construction washers tested for extreme loads and vibration?

Yes. They are verified through Junker vibration tests and EN 14399 performance criteria, ensuring reliability under wind, dynamic forces, and temperature changes.

Are Nord-Lock steel construction washers CE-marked?

Yes. Nord-Lock steel construction washers are CE-marked as part of the EN 1090 certification framework. This means they are approved for use in loadbearing steel structures and meet the performance and safety requirements defined for construction products in the EU and UK markets, marked as part of the EN 1090 certification framework. Read more about CE-marking here.