SC Nord Lock Self-locking Washer
The Nord-Lock SC self-locking washer is a specialized mounting element for securing steel structures. Designed for HV and HR bolt assemblies, it replaces traditional chamfered washers, ensuring the highest level of safety in accordance with European standards.
Applications:
Severe civil engineering and industrial construction: bridges, steel halls, wind towers, railway infrastructure. Compatible with high-strength structural bolts (HV/HR) under dynamic loads and vibrations.
Technical Specifications:
- Material: Fully hardened steel
- Coating: Delta Protekt® (zinc flake)
- Corrosion resistance: min. 1000 hours (ISO 9227)
- Certification: ETA-20/0010, CE mark
- Operating temperature: -50°C to +200°C
Key benefits:
- Special internal chamfer - perfect fit for HV bolts
- Symmetrical design - prevents incorrect assembly
- Mechanical wedge locking eliminates loosening
- Replaces EN 14399-6 chamfered washers
- Maintains high preload in the bolt
- CE and ETA certified quality
- Easy installation with standard tools
- Eliminates the need for retightening connections
Important: The hardness of the mounting surfaces must be less than the hardness of the washers. Special chamfers ensure a snug fit to the radius under the head of HV bolts.
A certified solution for steel engineering where safety and compliance are a priority.
Product inquiry form
- Group
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