Machined washers may look simple, but their role in modern engineering is critical.
These precision-cut discs distribute load, protect surfaces, and ensure perfect spacing in everything from engines and turbines to robotics and electronics.
At Stephens Gaskets, we’ve been manufacturing custom machined washers in the West Midlands since 1947, combining skilled craftsmanship with modern CNC and laser technology.
Our washers are trusted worldwide for their accuracy, durability, and reliability, meeting the tightest tolerances in demanding applications.
What Are Machined Washers?
Machined washers – also known as precision washers or spacers – are designed to improve mechanical performance by distributing loads evenly, reducing wear, and maintaining correct alignment.
Unlike stamped or punched washers, machined versions are turned or CNC-cut for consistent flatness, concentricity, and edge finish.
They are used wherever components must perform under pressure, heat, or vibration – providing load distribution, surface protection, and spacing accuracy that standard washers can’t match.
Benefits of Machined Washers
1. Load Distribution
They spread fastener load evenly across surfaces, protecting softer materials like wood, composites, and plastics from cracking or deformation.
2. Surface Protection
Machined washers act as a barrier between the fastener and the work surface, preventing scratches or damage during tightening.
3. Fastener Stability
They provide a flat, even seat for bolts and screws, reducing vibration loosening and ensuring consistent torque retention.
4. Corrosion Resistance
When made from stainless steel or coated metals, they protect assemblies from rust and chemical corrosion – extending service life.
5. Alignment & Spacing
Precision-machined thickness guarantees exact spacing in assemblies such as gearboxes, valve housings, and electrical components.
6. Vibration Dampening
When used with rubber or polymer layers, machined washers absorb shock and vibration, safeguarding sensitive systems.
7. Thermal & Electrical Isolation
Plastic or rubber insulating washers prevent heat transfer and electrical conduction in electronic assemblies.
8. Ease of Assembly & Appearance
They streamline installation, reduce torque requirements, and provide a polished, professional finish to visible fixtures.
Materials We Manufacture With
Stephens Gaskets produces machined washers from a wide range of materials to suit any engineering environment:
- Stainless Steel (304/316): Corrosion-resistant and ideal for aerospace, marine, and food industries.
- Mild Steel: Strong, economical, and easy to plate or coat.
- Brass & Copper: Excellent electrical and thermal conductivity.
- Aluminium: Lightweight and non-magnetic – perfect for transport and energy sectors.
- PTFE, Nylon & Plastics: Non-conductive, low-friction, and chemical-resistant for electrical or clean-room uses.
Each Washer is produced to ISO 9001 standards with full material traceability and inspection reports.
Applications of Machined Washers
Our washers are integral to:
- Automotive & Motorsport: Engine mounts, suspension assemblies, and braking systems.
- Aerospace: Turbine housings, actuators, and flight-critical systems.
- Manufacturing & Robotics: Machine alignment, jigs, and fixtures.
- Energy & Power: Generator, turbine, and valve assemblies.
- Electronics & Telecoms: Insulating spacers and circuit mounting.
Whatever the industry, our washers guarantee precision fit, dimensional accuracy, and long-term reliability.
Why Choose Stephens Gaskets
1. A Legacy of Excellence
Since 1947 we’ve been delivering precision-engineered components to global clients, combining heritage and innovation.
2. Precision Engineering
Our CNC and laser-cutting systems achieve micron-level accuracy for flawless repeatability.
3. Diverse Product Range
From standard flat washers to custom shoulder washers, gaskets, and shims – we manufacture everything in-house.
4. High-Quality Materials
Only certified, mill-tested metals and polymers are used, ensuring durability in the most demanding conditions.
5. Bespoke Solutions
Our engineers collaborate with you to produce washers matched exactly to your design, tolerances, and operating environment.
Our Manufacturing Process
1. Design & Consultation
We review your CAD or technical drawings to define tolerances and material specifications.
2. CNC Machining & Cutting
Precision tooling ensures perfect geometry and smooth edges.
3. Deburring & Finishing
Every washer is polished or treated for corrosion resistance and appearance.
4. Inspection & Certification
Flatness, thickness, and diameter verified before packaging.
5. Packaging & Delivery
We ship globally with batch traceability and certificates of conformity.
FAQs
1. Where can I buy precision-machined washers in the UK?
You can purchase directly from Stephens Gaskets, a leading UK washer manufacturer. We supply custom and stock machined washers with next-day UK dispatch and international shipping.
2. Do you produce bespoke shoulder or spacer washers to specification?
Yes – we manufacture custom washers from your drawing or CAD file, offering tolerances down to ±0.005 mm and any required surface finish.
3. Which materials are best for corrosion-resistant machined washers?
We recommend 316 stainless steel or brass for marine and chemical environments, or PTFE for non-metallic, chemical-resistant applications.
4. Are your machined washers certified and traceable?
All products are made under ISO 9001 and ISO 14001 certification, with full batch traceability and EN 10204 3.1 material certificates provided on request.
5. Can you handle bulk and prototype quantities?
Absolutely – we supply everything from one-off prototypes to large-volume production runs, maintaining consistent precision across all quantities.
Conclusion
For washers engineered to perfection, trust Stephens Gaskets – the UK’s leading.
Contact Stephens Gaskets
Phone: +44 (0)121 544 5808
Email: sales@stephensgaskets.co.uk
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