Our Stainless Steel Internal Tooth Lock Washers are ideal for applications where a neat appearance, secure fastening, and corrosion resistance are important. These washers feature internal serrated teeth that bite into the underside of the screw head, bolt head, or nut, helping to create a locking effect that resists loosening over time.
Manufactured from stainless steel, these washers offer excellent resistance to rust and corrosion, making them suitable for use in indoor, outdoor, and demanding industrial environments. Their internal tooth design also allows the teeth to remain hidden beneath the fastener head, making them a good choice where a cleaner finish is preferred.
Key Features
- Manufactured from stainless steel
- Internal tooth design for secure locking action
- Helps resist loosening caused by vibration
- Teeth remain hidden under the fastener head for a cleaner appearance
- Corrosion-resistant for long-lasting performance
- Suitable for use with bolts, screws, and nuts
- Ideal for compact fastening applications
Common Applications
- Electrical components
- Control panels
- Light engineering
- Machinery and equipment
- Automotive applications
- Stainless steel fastening systems
- General maintenance
- Industrial assemblies




