M20 (22mm) x 72mm Wood Construction Washer - DIN 440R | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £3.07 | £3.68 |
| 100 - 499 | £2.79 | £3.35 |
| 500 - 999 | £2.23 | £2.68 |
| 1000 - 9999 | £2.01 | £2.41 |
| 10000 + | £1.88 | £2.25 |
£3.68 / each
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Product Specification
| Size | M20 |
| Internal Diameter | 22.0mm |
| Outside Diameter | 72.0mm |
| Thickness | 6.00mm |
| Standard | DIN 440R |
| Material | A4 Stainless Steel |
Frequently Bought Together
Total Price: £0.00
M20 Wood Construction Washer - 22mm ID x 72mm OD | DIN 440R | A4 Stainless Steel
Made for high-humidity construction and external timber work, this large flat washer for timber 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?
DIN 440R and DIN 1052 Wood Construction Washers are intended for structural timber fastening where load spreading is important. Their broad round profile helps prevent concentrated clamping force from damaging the timber around the fixing point.
Common Applications
- 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.
- 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.
M20 DIN 440R Wood Construction Washer Dimensions
- Size: M20
- Internal Diameter: 22.0mm
- Outside Diameter: 72.0mm
- Thickness: 6.00mm
- Material: A4 Stainless Steel
- Standard: DIN 440R
Key Benefits
- DIN 440R manufacture provides the recognised dimensional standard for this washer type.
- Wide washer profile helps reduce the risk of fastener pull-through under clamping load.
- M20 size provides the stated fastener reference for the washer.
- 72.0mm outside diameter creates a large bearing area to spread load across the timber.
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.
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