Quality & traceability

Widely used and globally approved

The Nord-Lock washer is a high end product with documented success in many industries. Our products are approved by several industry standards and specified by numerous international companies.

The most prominent certification of Nord-Lock washers include:

  • DIBt (Deutsches Institut für Bautechnik)
  • DNV (Det Norske Veritas)
  • EBA (Eisenbahn-Bundesamt)
  • TÜV (Technischer Überwachungs-Verein)


Visit Nord-Lock washers – Certificates to find out more about the certifications.

The quality & environmental assurance of Nord-Lock washers include:

  • ISO 9001
  • ISO 14001
  • Licensed by Dörken to perform Delta Protekt® surface coating in-house
  • RoHs, ELV and Reach compliant
  • Full traceability

Laser marking

In 2011 Nord-Lock began to laser mark various sizes of the Nord-Lock washers. Since January 2016 all Nord-Lock washers manufactured are laser marked with the Nord-Lock brand name, control number and a type code. This is to ensure that all of our customers receive genuine Nord-Lock washers and enables full traceability down to the first assembly.

Laser marking, type code table

Washer type Code
Steel, Delta Protekt® coating flZn
Stainless steel SS SS
254 SMO® 254
INCONEL® / HASTELLOY® C-276 276 276
INCONEL® 718 718


For more information regarding the importance of using genuine Nord-Lock products, please visit Copies could cost you dearly.