M5 (5.5mm) x 18mm Wood Construction Washer - DIN 440R | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.07 | £0.08 |
| 100 - 499 | £0.06 | £0.07 |
| 500 - 999 | £0.05 | £0.06 |
| 1000 - 9999 | £0.04 | £0.05 |
| 10000 + | £0.03 | £0.04 |
£0.08 / each
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Product Specification
| Size | M5 |
| Internal Diameter | 5.5mm |
| Outside Diameter | 18.0mm |
| Thickness | 2.00mm |
| Standard | DIN 440R |
| Material | A4 Stainless Steel |
Frequently Bought Together
Total Price: £0.00
M5 Wood Construction Washer - 5.5mm ID x 18mm OD | DIN 440R | A4 Stainless Steel
Made for marine timber work, jetties and boardwalks, this wood construction washer fits beneath compatible bolts, coach screws or nuts to help protect the timber surface around the connection. The A4 Stainless Steel construction provides corrosion resistance while the large washer diameter supports stable load distribution. 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?
Wood Construction Washers are large-diameter flat washers designed specifically for timber assemblies. Their wider surface area spreads the clamping load from bolts, coach screws or nuts across more of the wood which helps reduce crushing, indentation and fastener pull-through.
Common Applications
- Boardwalks and Jetties: A4 Stainless Steel options suit timber structures exposed to saltwater, high humidity and coastal conditions.
- Timber Frame Construction: Spreads bolt or coach screw load across beams, posts and joists to support stronger structural joints.
- Heavy Timber Projects: Supports larger structural connections where standard flat washers may not provide enough load distribution.
- Retaining Structures: Helps spread clamping force in heavy timber walls, sleepers and structural support projects.
M5 DIN 440R Wood Construction Washer Dimensions
- Size: M5
- Internal Diameter: 5.5mm
- Outside Diameter: 18.0mm
- Thickness: 2.00mm
- Material: A4 Stainless Steel
- Standard: DIN 440R
Key Benefits
- Round construction-washer format supports stable load distribution across timber connections.
- 5.5mm internal diameter provides clearance around the compatible bolt or coach screw.
- A4 Stainless Steel construction provides corrosion resistance for suitable timber construction applications.
- Large bearing surface helps reduce local crushing and indentation in softer timber.
Compare more sizes in our Wood Construction Washer range for different timber fasteners and structural applications. If you are unsure which size or grade you need, contact our team on 01233 713581.
Fri 8.30 am - 3.30 pm
