Conversion Chart

Std Washer Nord-Lock 316L SS 1/4x11.5x2.2 (Box=1)

NORD-LOCK - 1/4
Stock Code:
WN16DP025
$13.80 incl GST

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Description

DESCRIPTION

Standard Washer Nord-Lock 316L Stainless Steel 1/4 x 11.5 x 2.2 mm (Box=1)

(Price per unit)

Nord-Lock is the Swedish inventor / manufacturer of the wedge-locking fastener security system.

  • Nord-Lock Washers are a locking washer system made from two matching washers.
  • They feature radial teeth on the outer surfaces and cam surfaces on the inner faces.
  • When installed correctly, the cam angle is greater than the bolt thread pitch.
  • If the bolt attempts to rotate loose, the washer design forces the bolt to move upward instead, increasing tension and preventing loosening.
  • This creates a secure joint that remains tight even under severe vibration and dynamic loading.

Benefits

The patented wedge-locking system prevents fasteners from loosening when exposed to vibration and dynamic forces.

  • It works by using a wedge-locking effect to maintain joint security.
  • The design does not rely on additional components such as:
    • Springs
    • Thread-locking adhesives
    • Nylon locking inserts
  • This provides a reliable mechanical locking solution for applications where fastener integrity is critical.

Common Applications:

  • Heavy machinery and industrial equipment
  • Mining operations
  • Wind turbine structures
  • Railway and transport systems
  • Other safety-critical bolted connections where loosening cannot be tolerated.

Available Materials and Coatings:

  • Delta Protekt zinc flake coating for corrosion protection
  • A4-70 grade G316 stainless steel for harsh or corrosive environments

To ensure optimum strength, corrosion resistance, and long-term performance, washers should be selected from a material compatible with the bolt and nut. For example, use stainless steel washers with stainless steel fasteners, and galvanised washers with galvanised fasteners.

Further information can be found in the guides below

Product
STANDARD WASHER
 
Finish
316L STAINLESS
 
Marine Grade Stainless Steel A4-70 (316) offers excellent corrosion resistance for demanding environments. Ideal for marine, coastal, chemical, and food-processing applications where long-lasting performance is required.
 
Size
1/4
 
Specification / Reference
NORD-LOCK
 
Length / Dimension
x11.5x2.2
 
 
Click here for hobson Nord-Lock product guide
 
Click here for hobson Nord lock wedge lock solutions brochure
 
Click here for hobson Nord lock torque calculator
 
Click here for hobson Nord Lock washers user manual 
 
Click here for types of washers
 
Click here for nord lock hardness tables 
 
Click here for nord lock vibration test diagram
 
Click here for junker test principle
 
Click here for anti-vibration paper
 
Click here for Nord-lock superbolt and boltight ISO 9001 certificate
 
Click here for washer gauge conversion chart
 
Click here for common misconceptions about stainless steel