Screws
Nails
Fasteners & Fixings
Adhesives & Building Chemicals
Powertool Accessories
Fence & Gate Hardware
Building Supplies
Security & Ironmongery
Site and Access
Hand Tools
Painting & Decorating
Workwear, PPE & Safety
Stainless Steel Form A Washers (BS 4320 / DIN 125-A)
A2 stainless steel Form A washers for corrosion-resistant clamping and load spreading in external and damp environments.
Timco A2 Stainless Steel Form A Washers – M10 – Bag of 10
In stock
£0.66 ex VAT(£0.79 inc VAT)
SKU:
WA10SSX
Timco A2 Stainless Steel Form A Washers – M10 – Pack of 20
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA10SSP
Timco A2 Stainless Steel Form A Washers – M12 – Bag of 10
In stock
£0.91 ex VAT(£1.09 inc VAT)
SKU:
WA12SSX
Timco A2 Stainless Steel Form A Washers – M12 – Pack of 10
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA12SSP
Timco A2 Stainless Steel Form A Washers – M16 – Bag of 10
In stock
£1.41 ex VAT(£1.69 inc VAT)
SKU:
WA16SSX
Timco A2 Stainless Steel Form A Washers – M16 – Pack of 6
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA16SSP
Timco A2 Stainless Steel Form A Washers – M4 – Bag of 50
In stock
£0.58 ex VAT(£0.69 inc VAT)
SKU:
WA4SSX
Timco A2 Stainless Steel Form A Washers – M5 – Bag of 50
In stock
£0.58 ex VAT(£0.69 inc VAT)
SKU:
WA5SSX
Timco A2 Stainless Steel Form A Washers – M5 – Pack of 50
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA5SSP
Timco A2 Stainless Steel Form A Washers – M6 – Bag of 20
In stock
£0.58 ex VAT(£0.69 inc VAT)
SKU:
WA6SSX
Timco A2 Stainless Steel Form A Washers – M6 – Pack of 50
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA6SSP
Timco A2 Stainless Steel Form A Washers – M8 – Bag of 20
In stock
£0.66 ex VAT(£0.79 inc VAT)
SKU:
WA8SSX
Timco A2 Stainless Steel Form A Washers – M8 – Pack of 30
In stock
£1.83 ex VAT(£2.19 inc VAT)
SKU:
WA8SSP
What are stainless steel Form A washers used for?
Stainless steel Form A washers are used to spread load under a bolt or nut while providing strong corrosion resistance. As a result, they are ideal for outdoor, marine and damp environments.
Manufactured from A2 stainless steel, these washers conform to BS 4320 and DIN 125-A standards. They offer superior durability compared to zinc plated alternatives and are suitable where moisture, condensation or corrosive materials are present.
Specifications
| Material | A2 Stainless Steel |
| Standard | BS 4320 / DIN 125-A |
| Corrosion Resistance | High – Suitable for external and damp conditions |
| Profile | Form A – Standard Flat Washer |
Available Sizes
| Washer Size | To Suit Bolt | Typical Uses |
|---|---|---|
| M4 | M4 bolt | Light stainless fixings and small brackets |
| M5 | M5 bolt | Electrical fittings and light assemblies |
| M6 | M6 bolt | External furniture and light timber joints |
| M8 | M8 bolt | Decking, fencing and general outdoor fixings |
| M10 | M10 bolt | Gate hardware and structural timber connections |
| M12 | M12 bolt | Heavy external fixings and frames |
| M16 | M16 bolt | Structural stainless assemblies and steelwork |
Why choose stainless steel instead of zinc?
Stainless steel washers provide significantly better corrosion resistance than zinc plated washers. Therefore, they are recommended for outdoor use, coastal areas and environments where the base material has corrosive characteristics, such as treated timber or green oak.
