RS PRO A2 304 Stainless Steel Plain Form B Washers, M24, BS 4320B

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Subtotal (1 bag of 25 units)*

£8.38

(exc. VAT)

£10.06

(inc. VAT)

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  • 24 unit(s) ready to ship
  • Plus 20 unit(s) ready to ship from another location
  • Plus 39 unit(s) shipping from 12 November 2025
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1 +£8.38£0.335

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RS Stock No.:
193-3485
Brand:
RS PRO
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Brand

RS PRO

For Screw/Bolt Size

M24

Washer Type

Plain Form B

Inside Diameter

25.0mm

Outside Diameter

44.0mm

Standards Met

BS 4320B

Material

Stainless Steel

Stainless Steel Type

A2 304

Thickness

2.70mm

RS PRO A2 Stainless Steel Plain Washer


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


• A2 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.

Note

Washers size up to and including M6 are supplied to form A. Washers size M8 and higher are supplied to form B.
M24 FORM B WASHER A2 STAINLESS (25)

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