Potterton
Potterton Screw M6 x 10mm Pan Head 633978
M6 x 10mm pan head pozidriv screw in nickel-plated mild steel, listed by Potterton as part 633978.
At a glance
- Also known as 1124221
Showing prices
£4.20
£3.50 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 Potterton M6 x 10mm pan head pozidriv screw, supplied as part 633978. It is a mild steel fastener with a nickel-plated finish, used for casing, panel and component fixing on Potterton gas boilers. It is listed against a wide range of Potterton Envoy and Kingfisher appliances.
Signs this part needs replacing
- The head is corroded, chewed or rounded and will not take a pozidriv bit cleanly.
- The thread is stripped, cross-threaded or will not hold torque in the fixing point.
- The screw is seized or rusted into the casing or bracket and shears on removal.
- A fastener is missing after servicing, leaving a panel, bracket or component insecure.
- The screw has been lost or dropped during strip-down and no matching item is to hand.
Before you order
- Confirm your appliance model against the Potterton parts list for part 633978.
- Check the thread size and length required at the fixing point — M6 x 10mm is not interchangeable with other lengths.
- Check the head type and drive required, as pan head pozidriv differs from countersunk or hex head fixings.
- Check how many fixings are needed, as this listing is for a single screw.
Compliance
| GC number | 402-387 |
|---|---|
| Barcode / EAN | 5039177674269 |
| Alternative numbers | 1124221 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON ENVOY 30 | 41-607-60 | 41-607-60 | — | — |
| POTTERTON ENVOY 40 | 41-607-61 | 41-607-61 | — | — |
| POTTERTON ENVOY 50 | 41-607-62 | 41-607-62 | — | — |
| POTTERTON ENVOY 60 | 41-607-63 | 41-607-63 | — | — |
| POTTERTON ENVOY 80 | 41-607-64 | 41-607-64 | — | — |
| POTTERTON ENVOY FLOWSURE & FLOWSURE+ | 41-607-89 | 41-607-89 | — | — |
| POTTERTON ENVOY SYSTEM 30 | 41-607-84 | 41-607-84 | — | — |
| POTTERTON ENVOY SYSTEM 40 | 41-607-85 | 41-607-85 | — | — |
| POTTERTON ENVOY SYSTEM 50 | 41-607-86 | 41-607-86 | — | — |
| POTTERTON ENVOY SYSTEM 60 | 41-607-87 | 41-607-87 | — | — |
Showing 10 of 61 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
POTTERTON appliance manual — ENVOY 30 (GC 41-607-60), ENVOY 40 (GC 41-607-61), ENVOY 50 (GC 41-607-62), ENVOY 60 (GC 41-607-63), ENVOY 80 (GC 41-607-64)
manualmanualPOTTERTON appliance manual — ENVOY FLOWSURE & FLOWSURE+ (GC 41-607-89)
manualmanualPOTTERTON appliance manual — ENVOY SYSTEM 30 (GC 41-607-84), ENVOY SYSTEM 40 (GC 41-607-85), ENVOY SYSTEM 50 (GC 41-607-86), ENVOY SYSTEM 60 (GC 41-607-87), ENVOY SYSTEM 80 (GC 41-607-88)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 CF 100 (GC 41-607-11), KINGFISHER 2 CF 80 (GC 41-607-10)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 RS 100 (GC 41-607-21), KINGFISHER 2 RS 60 (GC 41-607-19), KINGFISHER 2 RS 80 (GC 41-607-20)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 RS 40 (GC 41-607-17)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 RS 50B (GC 41-607-18), KINGFISHER MKII RS50B (GC 41-605-45)
manualmanualPOTTERTON appliance manual — KINGFISHER CF 100 (GC 41-601-42), KINGFISHER CF 80 (GC 41-601-39)
manualmanualPOTTERTON appliance manual — KINGFISHER CF 150 (GC 41-601-16)
manualmanualPOTTERTON appliance manual — LYNX 2 - LPG (GC 47-590-09), LYNX 2 - NG (GC 47-590-08)
manualmanualPOTTERTON appliance manual — LYNX ELECTRONIC RS (GC 47-592-20)
manualmanualPOTTERTON appliance manual — SUPRIMA 100 (GC 41-607-82)
manualmanualPOTTERTON appliance manual — SUPRIMA 100 L (GC 41-590-48), SUPRIMA 120 L (GC 41-590-49), SUPRIMA 30 L (GC 41-590-42), SUPRIMA 40 L (GC 41-590-43), SUPRIMA 50 L (GC 41-590-44), SUPRIMA 60 L (GC 41-590-45), SUPRIMA 80 L (GC 41-590-47)
manualmanualPOTTERTON appliance manual — SUPRIMA 30 (GC 41-607-75), SUPRIMA 40 (GC 41-607-76), SUPRIMA 50 (GC 41-607-77), SUPRIMA 60 (GC 41-607-78), SUPRIMA 70 (GC 41-607-79), SUPRIMA 80 (GC 41-607-80)
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