Wedge lock washer Nord-Lock, narrow shape (NL)

General:

Original Nord-Lock wedge lock washers secure screw connections that are subject to severe vibrations and dynamic loads.

Corrosion resistance:

High level of corrosion resistance (at least 1,000 hours in salt spray test in accordance with ISO 9227)

Function:

Highly secure locking as wedge surfaces slope up between the two lock washers. The screw connection is locked by pretension instead of by friction.

Advantages:

• Quick and easy installation/removal with standard tools


• Secure locking even with lubrication


• Reliable securing - even for screw connections with short clamping lengths


• Reusable (depending on operating environment)


• CE marking


• Laser marking for continuous traceability


• Designed for screws up to and including strength class 12.9 (steel) and A4-80 (high-grade steel)

Certificates and approvals:

• DIBt (Deutsches Institut für Bautechnik - German Institute for Construction Technology)


• DNV GL (Det Norske Veritas Germanischer Lloyd)


• EBA (Eisenbahn-Bundesamt - German Federal Railway Authority)


• TÜV (Technischer Überwachungs-Verein - German Technical Inspection Association)


• LR (Lloyd's Register)

Note:

For the recommended tightening torques, please see the technical information from the manufacturer.