Lock Washers
Lock Washers |Internal, External & Combo Lock Washers for Secure Fastening
Index Fasteners supplies a full range of lock washers engineered to prevent loosening, maintain clamp load, and improve joint reliability in fastened assemblies exposed to vibration, thermal cycling, and dynamic loads. Our lock washers are used across automotive, electrical, machinery, HVAC, and general industrial applications where fastener integrity is critical to safety and performance.
Manufactured to precise specifications from spring steel, stainless steel, and other durable materials, our lock washers install easily beneath standard nuts and bolt heads and provide reliable resistance to loosening across a wide range of fastening applications. Lock washers are commonly used by OEM manufacturers, maintenance departments, machine builders, electrical contractors, and industrial equipment assemblers where consistent joint performance is essential.
Lock Washers for Industrial and OEM Applications
Our lock washers are engineered for demanding industrial environments and are commonly found in:
- Automotive assemblies
- Electrical enclosures and panels
- Control cabinets
- HVAC equipment
- Agricultural equipment
- Industrial machinery
- Commercial appliances
- Structural and sheet metal fabrications
- Machine frames and equipment housings
Whether you're securing critical structural connections or preventing loosening in vibration-prone assemblies, our lock washers provide a reliable and professional solution for maintaining fastener integrity.
Durable Construction for Reliable Performance
Index Fasteners' lock washers are designed for long-lasting performance under repeated stress and dynamic loading. Their engineered profiles — including split, internal/external tooth, and Combination styles — create resistance against back-off, helping maintain proper clamp load over the life of the assembly.
Benefits include:
- Resists loosening from vibration and thermal cycling
- Available in split, tooth, and Belleville styles
- Durable spring steel and stainless steel construction
- Maintains consistent clamp load
- Multiple sizes and finishes available
- Ideal for OEM and MRO applications
Why Buy Lock Washers from Index Fasteners?
Index Fasteners has supplied industrial fasteners to manufacturers across North America for decades. We maintain inventory of common lock washer types and sizes, provide fast shipping, and support OEM production, maintenance, repair, and industrial distribution customers with dependable service and competitive pricing.
Browse our complete selection of split lock washers, tooth lock washers, and Belleville lock washers to find the right solution for your application.