Worcester Bosch
Worcester Bosch screw, M4 x 8mm hex head pozi taptite (8716117078)
Worcester Bosch M4 x 8mm hex-head Pozi Taptite screw used across the iSystem and GR4700iW boiler ranges.
At a glance
- Also known as 1030995
Showing prices
£1.25
£1.04 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
A genuine Worcester Bosch fixing screw: an M4 x 8mm hexagonal-head Pozidriv Taptite screw, used across the iSystem and GR4700iW boiler ranges and the ZWBE 30-3 C 23.
Signs this part needs replacing
- The original screw is stripped, corroded, sheared or missing
- A panel, bracket or component it secures has come loose
- The screw was lost during a service or repair and needs replacing to the correct spec
Before you order
- Confirm your appliance is one of the iSystem, GR4700iW or ZWBE 30-3 C 23 models listed above
- Isolate the appliance's power supply before removing any casing or panel
Compliance
| GC number | J25-235 |
|---|---|
| Barcode / EAN | 4054925285321 |
| Alternative numbers | 1030995 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 12i ErP SYSTEM LPG | 41-406-24 | 41-406-24 | — | — |
| WORCESTER GREENSTAR 12i ErP SYSTEM NG | 41-406-23 | 41-406-23 | — | — |
| WORCESTER GREENSTAR 15i ErP SYSTEM LPG | 41-406-26 | 41-406-26 | — | — |
| WORCESTER GREENSTAR 15i ErP SYSTEM NG | 41-406-25 | 41-406-25 | — | — |
| WORCESTER GREENSTAR 18i ErP SYSTEM LPG | 41-406-28 | 41-406-28 | — | — |
| WORCESTER GREENSTAR 18i ErP SYSTEM NG | 41-406-27 | 41-406-27 | — | — |
| WORCESTER GREENSTAR 21i ErP SYSTEM LPG | 41-406-30 | 41-406-30 | — | — |
| WORCESTER GREENSTAR 21i ErP SYSTEM NG | 41-406-29 | 41-406-29 | — | — |
| WORCESTER GREENSTAR 24i ErP SYSTEM LPG | 41-406-32 | 41-406-32 | — | — |
| WORCESTER GREENSTAR 24i ErP SYSTEM NG | 41-406-31 | 41-406-31 | — | — |
Showing 10 of 60 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
WORCESTER appliance manual — GREENSTAR 12i ErP SYSTEM LPG (GC 41-406-24), GREENSTAR 12i ErP SYSTEM NG (GC 41-406-23), GREENSTAR 15i ErP SYSTEM LPG (GC 41-406-26), GREENSTAR 15i ErP SYSTEM NG (GC 41-406-25), GREENSTAR 18i ErP SYSTEM LPG (GC 41-406-28), GREENSTAR 18i ErP SYSTEM NG (GC 41-406-27), GREENSTAR 21i ErP SYSTEM LPG (GC 41-406-30), GREENSTAR 21i ErP SYSTEM NG (GC 41-406-29), GREENSTAR 24i ErP SYSTEM LPG (GC 41-406-32), GREENSTAR 24i ErP SYSTEM NG (GC 41-406-31), GREENSTAR 9i ErP SYSTEM LPG (GC 41-406-22), GREENSTAR 9i ErP SYSTEM NG (GC 41-406-21)
manualmanualWORCESTER appliance manual — GREENSTAR 25i ErP COMBI LPG (GC 47-406-61), GREENSTAR 25i ErP COMBI NG (GC 47-406-60), GREENSTAR 30i ErP COMBI LPG (GC 47-406-63), GREENSTAR 30i ErP COMBI NG (GC 47-406-62)
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