Safety Washer - Serrated Type S

Serrated Safety Washers have the unique feature of having radial serrations on both of its surfaces. These serrations bite into mating faces and prevent the loosening of the screw due to vibration. Type S washers are the standard version for bolt locking up to Grade 8.8.


  • Metric: Dia M1.6 - M36
  • Material/Finish: Zinc Plated & Stainless Steel
  • Compliance: Type S Normal Application
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Available in 39 variations

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