M24 Nord-Lock Washers (677-330)

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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. Nord-Lock washers are used in industries such as: energy, transportation, offshore, mining and quarrying, construction and bridge building, manufacturing and processing, ship building, forestry and agriculture, heavy vehicles, and military. The number of industries that use Nord-Lock washers is continuously growing. Often joints do not start to loosen until an application is in regular use, therefore Nord-Lock washers are commonly retrofitted during maintenance, repair and overhaul procedures.

  • Model: KNA677-330
  • Shipping Weight: 0.099lbs
  • Manufactured by: Knaap Fasteners


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