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Nord-Lock Steel Construction washers 

Nord-Lock Steel Construction washers

Steel Construction Washers

Nord-Lock Steel Construction (SC) washers are wedge-locking washers specially designed for use on steel construction applications in accordance with the European standard EN 14399-3 /EN 14399-4 /EN 14399-8

Description

Nord-Lock Steel Construction (SC) washers are specialized wedge-locking washers engineered specifically for steel construction applications, ensuring maximum safety and joint integrity in structural bolted connections. Designed in full compliance with European standards EN 14399-3, EN 14399-4, and EN 14399-8, these washers provide reliable performance for high-strength structural bolting assemblies.

The Nord-Lock SC washers utilize a proven wedge-locking mechanism that prevents bolt loosening under dynamic loads, intense vibration, and heavy preload conditions common in steel construction. By creating a wedge effect between the washer cams, they effectively secure bolted joints and maintain tension over time, reducing the risk of structural failure and minimizing maintenance.

Ideal for bridges, buildings, towers, and other civil engineering structures, Nord-Lock SC washers are the preferred choice for engineers and contractors seeking vibration-resistant, high-performance locking washers that meet strict industry standards.

Benefits:

  • Secures bolted joints exposed to severe vibration and dynamic loads
  • Designed and approved for use with HV and HR bolting assemblies
  • Reliable locking even for joints with short clamp length
  • High corrosion resistance
  • CE marked (ETA-19/0813, ETA-20/0010)
  • Secures bolted joints in structural steelwork
  • Locking function not affected by lubrication
  • Available in steel material with sizes from M12–M36
  • Withstand temperatures between -50°C and 150°C
  • High reusability potential

Technical Specifications

ApplicationsBuilding and construction applications
Material StandardSteel EN 1.7182 or equivalent
HardeningThrough hardened*
Corrosion ResistanceMinimum 1,000 hours in salt spray test (according to ISO 9227)
Temperature Range-40°C to +150°C**
Compatible Bolt Grades4.6 to 10.9
Product DesignationNLSC
Laser MarkingTraceable batch number and type code: flZn
Size RangeM12 – M36 (NL12SC – NL36SC)
CoatingBasecoat: Delta Protekt® KL100 Topcoat: VH 302 GZ