RS PRO A4 316 Stainless Steel Plain Washers, M10, BS 4320
- RS Stock No.:
- 189-670
- Distrelec Article No.:
- 304-17-084
- Brand:
- RS PRO
Subtotal (1 bag of 50 units)*
£9.56
(exc. VAT)
£11.47
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 813 unit(s) ready to ship
- Plus 153 unit(s) ready to ship from another location
- Plus 240 unit(s) shipping from 26 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Bag(s) | Per Bag | Per unit* |
---|---|---|
1 + | £9.56 | £0.191 |
*price indicative
- RS Stock No.:
- 189-670
- Distrelec Article No.:
- 304-17-084
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
---|---|---|
Brand | RS PRO | |
For Screw/Bolt Size | M10 | |
Washer Type | Plain | |
Inside Diameter | 10.50mm | |
Outside Diameter | 21.0mm | |
Material | Stainless Steel | |
Standards Met | BS 4320 | |
Stainless Steel Type | A4 316 | |
Finish | Plain | |
Thickness | 1.25mm | |
Select all | ||
---|---|---|
Brand RS PRO | ||
For Screw/Bolt Size M10 | ||
Washer Type Plain | ||
Inside Diameter 10.50mm | ||
Outside Diameter 21.0mm | ||
Material Stainless Steel | ||
Standards Met BS 4320 | ||
Stainless Steel Type A4 316 | ||
Finish Plain | ||
Thickness 1.25mm | ||
RS PRO Stainless Steel Plain Washers
From the trusted RS PRO Brand, these stainless steel washers are generally used with a machine threaded fastener and nut to spread the load over a greater surface area when tightening a bolt, screw or nut. As they are made of stainless steel, they have an element of corrosion resistance and are suitable for use in many environments.
How do they work?
RS PRO washers are an essential part of any fastener assembly, as they serve to incorporate spacing and distribute load when placed between a nut and bolts. These washers will help prevent wear and distortion of installation surfaces over time.
Features and Benefits
A4 stainless steel construction for durability
BS4320
Available in a range of metric sizes
Applications
RS PRO washers are an essential part of any fastener assembly. They decrease the surface load when joining materials, meaning there is less pressure on the material, resulting in a decrease chance of wear and tear over time. You can use them to make maintenance easier by allowing for smoother loosening and tightening of components. Plain washers are commonly used in many electronic, food, chemical and construction applications.
What is the difference between a plain washer and a penny washer?
Other than standard washers, you might also hear washers referred to as fender washers, penny washers and mudguard washers. These 'repair washers' have a larger external diameter in comparison to the inner diameter, meaning a larger distribution of surface area. They can be used with a worn fixing hole or to fasten larger surface areas.
Why RS PRO?
RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need. When it comes to tools and fasteners, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist fasteners and couplers to suit any application. Whether you're a professional electrician, plumber, builder or DIY enthusiast, RS PRO is here to support you.
Related links
- RS PRO Bright Zinc Plated Steel Plain Washers BS 4320
- RS PRO A4 316 Stainless Steel Plain Washers BS 4320
- RS PRO A4 316 Stainless Steel Plain Washers BS 4320
- RS PRO A4 316 Stainless Steel Plain Washers BS 4320
- RS PRO A4 316 Stainless Steel Plain Washers BS 4320
- RS PRO A4 316 Stainless Steel Plain Washers DIN 125A
- RS PRO Bright Zinc Plated Steel Plain Washers BS 4320
- RS PRO Bright Zinc Plated Steel Plain Washers BS 4320