M8 (9mm) x 28mm Wood Construction Washer - DIN 440R | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.19 | £0.23 |
| 100 - 499 | £0.17 | £0.21 |
| 500 - 999 | £0.14 | £0.17 |
| 1000 - 9999 | £0.12 | £0.15 |
| 10000 + | £0.12 | £0.14 |
£0.23 / each
.png)
Product Specification
| Size | M8 |
| Internal Diameter | 9.0mm |
| Outside Diameter | 28.0mm |
| Thickness | 3.00mm |
| Standard | DIN 440R |
| Material | A4 Stainless Steel |
Frequently Bought Together
Total Price: £0.00
M8 Wood Construction Washer - 9mm ID x 28mm OD | DIN 440R | A4 Stainless Steel
Providing reinforcement for coastal timber structures and exposed outdoor joinery, this large diameter timber washer combines a M8 fastener reference with a 28.0mm outside diameter. The wider bearing face supports demanding timber joints by distributing force more evenly across the surrounding wood. The A4 marine-grade material is particularly suited to coastal, marine and high-moisture timber applications where enhanced corrosion resistance is required.
What Are Wood Construction Washers?
Timber Construction Washers provide a larger bearing surface than standard flat washers. They are commonly positioned beneath bolt heads or nuts in timber framing so the fixing force is distributed more evenly across beams, posts, joists and other wooden components.
Common Applications
- Outdoor Joinery: Provides corrosion-resistant load spreading around bolts and coach screws in external timber work.
- Boardwalks and Jetties: A4 Stainless Steel options suit timber structures exposed to saltwater, high humidity and coastal conditions.
- Decking and Pergolas: Helps prevent fasteners sinking into timber as outdoor structures settle or move over time.
- Heavy Timber Projects: Supports larger structural connections where standard flat washers may not provide enough load distribution.
M8 DIN 440R Wood Construction Washer Dimensions
- Size: M8
- Internal Diameter: 9.0mm
- Outside Diameter: 28.0mm
- Thickness: 3.00mm
- Material: A4 Stainless Steel
- Standard: DIN 440R
Key Benefits
- 9.0mm internal diameter provides clearance around the compatible bolt or coach screw.
- 3.00mm thickness provides the specified washer section for this size.
- Large bearing surface helps reduce local crushing and indentation in softer timber.
- Suitable for use beneath compatible bolt heads or nuts in timber framing and structural joinery.
See the wider Wood Construction Washers category for other DIN 440R and DIN 1052 dimensions. For sizing support, speak with our team on 01233 713581.
Fri 8.30 am - 3.30 pm
