LOCK WASHERS

Lock Washers

Nufast supplies a comprehensive range of lock washers designed to prevent loosening, maintain preload, and improve the reliability of fastener assemblies in demanding applications. Available in a wide choice of profiles, materials, and finishes, lock washers are essential components for vibration resistance and secure fastening in mechanical, structural, and industrial environments.

Split Lock Washers

Split lock washers feature a trapezoidal cross-section that deflects under load, creating friction to resist loosening. They can be used with or without a stainless steel flat washer and are widely used in applications where fasteners are subject to rotation or vibration.

Types available:

• High Profile Split Ring Lock Washers
• Medium Profile Split Ring Lock Washers
• Internal Tooth Lock Washers
• External Tooth Lock Washers

Material and finish options:

• Stainless Steel
• Black Oxide
• Aluminium
• Silicon Bronze
• Alloy Steel
• Zinc Plated
• Yellow Zinc
• Galvanised

Belleville Conical Washers

Also known as Belleville Washers, Disc Springs, Cone Washers, or Conical Spring Washers, these components are engineered to add preload to nut-and-bolt assemblies. Their conical shape delivers consistent spring force, making them ideal for high-vibration or heavy-load environments.

Key benefits:

• Vibration resistance
• Maintains preload over time
• Wide material range
• Available in multiple sizes

Applications:

• Automotive assemblies and engine components
• Industrial machinery and equipment
• Electronics and circuit board mounting
• Structural and mechanical assemblies

Customisation & Special Options

Nufast provides lock washers in a variety of materials, sizes, and surface finishes, including full stainless steel variants for superior corrosion resistance. Custom solutions are available to meet specific design, environmental, or industry requirements.

Capabilities include:

• Special dimensions and tolerances
• Bespoke geometries and projections
• Specialist coatings, plating, and corrosion protection
• Batch-level traceability with full inspection documentation

Nufast also supports volume call-off agreements, just-in-time (JIT) delivery, and long-term scheduling aligned with customer production forecasts.

Custom Fastener Solutions

In addition to standard lock washers, Nufast specialises in engineered fastening solutions tailored to complex design requirements. From prototype development to high-volume production,our group engineering team ensures:

• Functional integrity and performance
• Efficient manufacturability
• Reliable supply continuity

Contact Technical Support

For stock enquiries, technical advice, or custom project discussions, please contact the Nufast technical team:

• T: +44 (0)1543 270 700
• E: info@nufast.com

Or complete the enquiry form below, and a member of the team will respond promptly.