Star Washer External
Star Washer External
An External Star Washer, also known as an External Tooth Lock Washer, is a type of lock washer with multiple sharp teeth or serrations formed around its outer edge.
These teeth are designed to bite into the surface of the fastened material (like metal or plastic) and the underside of the fastener’s head or nut.
Function:
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The external teeth dig into both the fastener and the work surface, creating friction that resists vibration and rotational loosening.
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It spreads the load of the fastener over a larger area, protecting the surface from damage.
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The teeth provide better locking action compared to plain or spring washers, especially on larger surfaces.
Advantages:
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Ideal for assemblies exposed to movement or shock.
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Provides better grip than plain or split washers.
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Ensures reliable grounding and bonding
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Suitable for outdoor or industrial use
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Fits under standard nuts, bolts, and screw heads.
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Commonly used in automotive, electrical, machinery, and appliance industries.