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Internal tooth lock washers are fastening components designed with serrations on the inner circumference. These teeth bite into the surface of the fastener and the material, creati...
Internal tooth lock washers are fastening components designed with serrations on the inner circumference. These teeth bite into the surface of the fastener and the material, creating resistance against loosening caused by vibration or torque. Manufactured from high-strength steel with polished or plated finishes, they provide durability and corrosion resistance. Commonly used in mechanical assemblies, electrical housings, and industrial machinery, they comply with ISO/DIN standards for reliability.
| Attribute | Value |
|---|---|
| Core Product Name | Internal Tooth Lock Washer |
| Material | Steel |
| Shape | Circular with Internal Serrations |
| Function | Prevents loosening under vibration |
| Sizes Available | M3 – M24 |
| Finish Options | Zinc-Plated, Stainless Steel |
| Features | Vibration resistance, secure fastening |
| Industry Application | Mechanical, Electrical, Industrial Machinery |
| Additional Information | |
|---|---|
| SKU | 1 |
| Country of Origin | India |
| Customisable | No |
Internal tooth lock washers are applied in mechanical assemblies, electrical panels, and industrial machinery where vibration resistance is critical. Their serrated design ensures secure fastening by gripping both the fastener and the surface material, preventing loosening under dynamic loads. They are particularly effective in compact assemblies where external tooth washers may not fit, making them ideal for electronics, precision instruments, and vibration-prone mechanical systems.
| Production Lead Time | 4-7 Days |
| Available Stock | In stock |
| Sample Availability | No |
| Shipping Internationally | Yes | |
| Methods |
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| IncoTerms |
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| Port of Dispatch | -- | |
| Packaging Type | -- | |
| Units per Package | -- | |
| Barcode / HSN / GTIN / UPC | 0 | |
| Dispatch Lead time | Ships in 7 Days |

A washer with serrations on the inner edge to prevent loosening under vibration.
Mechanical assemblies, electrical housings, and industrial machinery.
It grips the fastener and material surface for secure fastening.
Yes, especially when zinc-plated or made from stainless steel.
Yes, manufactured to ISO, DIN, and ASTM standards.
Shipping fee and delivery date to be negotiated. Contact supplier now for more details.