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Internal Tooth Lock Washers, Plain (Inch)
Internal Tooth Lock Washers with a plain finish use inward-facing teeth to create strong frictional resistance against fastener rotation. The teeth grip the bearing surface and the underside of the fastener head, helping prevent loosening caused by vibration or movement. With no protective coating, these washers are ideal for indoor, dry, or controlled environments where corrosion protection is not a primary concern.
These washers are commonly used in electrical assemblies, electronics, appliances, and precision equipment where a smooth outer edge is preferred to avoid snagging or interference. Their internal tooth design provides excellent locking action while maintaining a clean, compact profile. Ideal for applications requiring reliable fastening security without added plating or surface treatments.
