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Locking Washer
  • Locking Washer

Locking Washer

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  • Product Details
  • Hook Washer
ParameterSpecification
Inner Diameter (ID)3.1 – 10.02 mm
Outer Diameter (OD)6 – 24 mm
Material65Mn / SK5 / SK7
Hardness (HRC)43 – 50 HRC
Material Thickness0.5 – 1.5 mm
Surface TreatmentEnvironmental Nickel, Chemical Nickel, Black Oxide, Zinc-Nickel Alloy
FunctionTo control the start and end of the rotation angle of the shaft.


Locking Washer is a standard anti-loosening component used to secure fastened parts under vibration or movement.    Its hook-type structure increases friction and locking performance, ensuring stable connection in mechanical assemblies.    It is a common solution for preventing screw and joint loosening in industrial equipment.

  • Function: Anti-loosening and secure locking

  • Feature: Strong mechanical grip

  • Application: Machinery, electronic devices, hardware fittings

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