Nord-Lock (Self-Lock)

• HS Code
• Certification
• Patent
• Awards
• Features
  ▶feature
  Our products are based on leading wedge-locking technology and are recognized for their ability to safely secure bolted joints exposed to severe vibration and dynamic loads.
  
  - Quick and easy to install and remove with standard tools
  - Locking function not affected by lubrication
  - Reusable_in addition, Nord-Lock washers do not affect the reusability of fasteners
  - The washers are hardened and can support and distribute great loads
  - Washers with enlarged outer diameter available for 리anged bolts / nuts
  - High corrosion resistance
  - Can be used with fasteners up to grade 12.9 (ASTM A574)
  - Reliable locking, even for joints with short clamp length • Secures fasteners at both high and low preloads• No retightening needed
  
  ▶Tension makes the bolt self-locking
  Nord-Lock washers secure bolted joints with tension instead of friction. The system is comprised of a pair of washers that has cams on one side and radial teeth on the opposite side.Since the cam angle ‘α’ is greater than the thread pitch ‘β’ a wedge effect is created by the cams, preventing the bolt from rotating loose.
  
  ▶Locking facilities
  Nord-Lock wedge-locking technology secures bolted joints with tension instead of friction. The system comprises of a pair of lock washers that has cams on one side and radial teeth on the opposite side. Nord-Lock wedge-locking products positively lock the fastener in a joint which is subjected to extreme vibration or dynamic loads.
  
  When the bolt and/or nut is tightened the teeth grip and seat the mating surfaces. The Nord-Lock wedge lock washer is locked in place, allowing movement only across the face of the cams. Any attempt from the bolt/nut to rotate loose is blocked by the wedge effect of the cams.
  
  When a bolt is untightened with a wrench, the pair of washers expand more than the corresponding pitch of the thread allows the bolt/nut to rise. Nord-Lock wedge lock washers positively secure the fastener in a joint which is subjected to any kind of vibration or dynamic loads.

  View more