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.
