Heatrae Sadia
Heatrae Sadia M8 External Tooth Lock Washer A2 Stainless Steel 7034210
M8 external tooth lock washer in A2 stainless steel for Heatrae Sadia electric water heaters and boilers.
At a glance
- Also known as 1736247
£14.40
£12.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Heatrae Sadia M8 external tooth lock washer is a stainless steel fastening component used across the manufacturer's electric water heaters and boilers. Its external teeth grip the mating surface as the fastener is tightened, resisting loosening caused by vibration and thermal cycling. The washer is produced in A2 stainless steel for corrosion resistance in wet heating and hot water environments.
Signs this part needs replacing
- Teeth flattened, crushed or worn so the washer no longer grips
- Visible corrosion, pitting or rust on the washer surface
- Washer missing after a component has been dismantled
- Fasteners loosening repeatedly despite correct torque
- Cracks or splits in the washer body
Before you order
- Confirm the fastener thread is M8
- Check that A2 stainless steel is suitable for the application and surrounding materials
- Verify your appliance model against the fit list above
- Check how many washers are required for the repair
Compliance
| Alternative numbers | 1736247 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HEATRAE SADIA FBM ECO 120L 3KW | — | — | — | |
| HEATRAE SADIA FBM ECO 25L 3KW | — | — | — | |
| HEATRAE SADIA FBM ECO 45L 3KW | — | — | — | |
| HEATRAE SADIA FBM ECO 70L 3KW | — | — | — | |
| HEATRAE SADIA HEATRAE SADIA PRODUCTS | — | — | — | |
| HEATRAE SADIA HOTFLO 100L / 3KW (VERTICAL) | — | — | — | |
| HEATRAE SADIA HOTFLO 80L / 3KW (VERTICAL) | — | — | — | |
| HEATRAE SADIA MULTIPOINT 100L / 3KW (HORIZONTAL) | — | — | — | |
| HEATRAE SADIA MULTIPOINT 100L / 3KW (VERTICAL) | — | — | — | |
| HEATRAE SADIA MULTIPOINT 30L / 3KW (HORIZONTAL) | — | — | — |
Showing 10 of 19 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
HEATRAE SADIA appliance manual — FBM ECO 120L 3KW, FBM ECO 25L 3KW, FBM ECO 45L 3KW, FBM ECO 70L 3KW
manualmanualHEATRAE SADIA appliance manual — HOTFLO 100L / 3KW (VERTICAL)
manualmanualHEATRAE SADIA appliance manual — MULTIPOINT 100L / 3KW (HORIZONTAL), MULTIPOINT 30L / 3KW (HORIZONTAL), MULTIPOINT 50L / 3KW (HORIZONTAL)
manualmanualHEATRAE SADIA appliance manual — MULTIPOINT 100L / 3KW (VERTICAL), MULTIPOINT 30L / 3KW (VERTICAL), MULTIPOINT 50L / 3KW (VERTICAL)
manualmanualHEATRAE SADIA appliance manual — R PLUS 120L 3KW, R PLUS 25L 3KW, R PLUS 45L 3KW, R PLUS 70L 3KW
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