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Metal Washers UK guide, how to choose the right washer
Metal Washers Explained: Types, Uses and Materials
Metal washers are one of the most commonly used fastening components across the UK, used in construction, engineering, automotive and everyday DIY applications. They are essential for distributing load, preventing loosening and protecting surfaces in mechanical and structural assemblies. Available in materials such as stainless steel, brass, copper, aluminium, zinc plated steel and nylon, selecting the correct washer type and material ensures secure fixing, proper load distribution and long term performance.
In this guide we explain the different types of metal washers, their uses and how to select the right option for your application.
Metal Washers Are Used Across
Construction
Engineering
Automotive
Maintenance Applications
Types of Metal Washers
These washers are commonly used with bolts and screws in structural and general applications.
Flat Washers
Designed to distribute load and protect surfaces. Commonly used across all industries.
Spring Washers
Provide tension to reduce loosening under vibration and movement.
Serrated Washers
Internal or external teeth grip surfaces to prevent rotation.
Curved Washers
Used on uneven or curved surfaces to ensure even load distribution.
Bonded Sealing Washers
Combine metal and rubber for sealing against water and air ingress.
Shop Metal Washers By Material
Which Washer Material Should You Choose?
| Material | Corrosion Resistant | High Strength | Lightweight | Electrically Conductive | Cost Effective | Best For |
|---|---|---|---|---|---|---|
| Stainless Steel | ✓ | ✓ | ✗ | ✗ | ✓ | Outdoor, marine and general engineering |
| Brass | ✓ | ✗ | ✗ | ✓ | ✓ | Plumbing and electrical applications |
| Copper | ✓ | ✗ | ✗ | ✓ | ✗ | Electrical and sealing applications |
| Aluminium | ✓ | ✗ | ✓ | ✓ | ✓ | Lightweight and aerospace applications |
| Titanium | ✓ | ✓ | ✓ | ✗ | ✗ | High performance and specialist use |
| Polycarbonate | ✓ | ✗ | ✓ | ✗ | ✓ | Electrical insulation applications |
How to Choose the Correct Metal Washer
Load Requirements
Consider the weight and pressure the washer needs to distribute. Heavier loads require thicker or larger diameter washers for effective load spreading.
Material
Choose a material that suits your corrosion resistance requirements. Stainless steel offers excellent all-round protection while brass and copper suit electrical and plumbing uses.
Environment
For outdoor or marine environments, choose a corrosion resistant material such as A4 stainless steel. For indoor dry environments, zinc plated steel is a cost effective option.
Vibration Resistance
If the application involves movement or vibration, consider spring washers or serrated washers which are designed to resist loosening over time.
Metal Washer FAQs
Shop Metal Washers
Browse our full range of stainless steel washers including flat and spring washers suitable for a wide range of applications.
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