Podložky pro stavby z konstrukční oceli

Společnost Nord-Lock vytvořila originální technologii jištění na principu závěrného klínu, která zajišťuje šroubové spoje, a to i při vystavení silným vibracím a dynamickým zatížením. Není možné, aby se naše výrobky samovolně uvolnily kvůli klínu vytvořenému pod hlavou šroubu a maticí.

Steel Construction Washers

Nord-Lock steel construction (SC) washers are specially designed to fit both HV and HR bolts and nuts, and directly replace standard plain chamfered washers (EN 14399-6).

In order to ensure an optimal contact surface between the bolt and the washer, each SC-washer pair has chamfers on the inner diameter. Since the chamfer is present on both sides of each pair, it eliminates the risk of incorrect installation of the washer.

Washer Specifications

Material Steel 1.7182 or equivalent
Hardness HV1 > 465 HV through hardened
Surface coating Zinc flake coated free of cadmium + chrome VI
Available range M12 – M36 (NL12SC – NL36SC)

 

Advantages

  • Prevents loosening caused by vibration and dynamic loads
  • Quick to install and remove using standard tools
  • Easy and safe installation on HV bolts due to double sided chamfer
  • Locking function not affected by lubrication
  • Defined and uniform friction condition, which results in less deviation of achieved preload
  • Same temperature characteristics as standard bolt / nut
  • Reusable
  • High corrosion resistance
  • Reliable locking, even for joints with short clamp length

Testing & Certification

Nord-Lock SC-washers have been rigorously tested and approved by independent institutes as well as certification authorities. They are CE-marked for use with HV sets. Their safe usage with high strength bolts has also been confirmed by the National Technical Approval No. Z-14.4-629 and by the European Technical Approval ETA-13/0246 issued by DIBT.

Obraťte se na nás.

Více informací o tom, jak nakládáme s vašimi osobními údaji, naleznete v části Oznámení o ochraně osobních údajů.

Děkujeme, že jste se na nás obrátili.