Nord-Lock Group About Nord-Lock Products Combi Nuts Selection Guide

Nord-Lock created the original wedge-locking technology that secures bolted joints, even when exposed to severe vibration and dynamic loads. It is impossible for our products to loosen unintentionally due to the wedge created underneath the bolt head and nut.

NORD-LOCK COMBI NUT
Applications Machine building, Power Gen, Transportation, Railway
Washer material EN 1.7182
Hardening Through hardened*
Washer hardness >465 HV1
Corrosion resistance Minimum 600 hours in salt spray test (according to ISO 9227)
Temperature range -50 to 150 C**
Bolt grades 8.8 and 10.9
Product designation NLCN
Size range M6-M16
Plating Zinc Nickel Plating (ZnNi)
Lubrication Dry film lubricant
Property class Class 10, ISO 898-2

* Washer hardness must be greater than the hardness of the mating surfaces in order to assure its mechanical function.

** Temperature recommendations are based on information from the raw material supplier and testing. The locking function is not affected within the specified range.

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