Baxi
Baxi Screw M4 x 16mm MC Hex Pozi 633973
Baxi screw, M4 x 16mm, MC hex Pozi head, part number 633973, for use across a range of Baxi and Potterton gas boiler appliances.
At a glance
- Also known as 1124220
Showing prices
£3.53
£2.94 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 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 Baxi fixing screw with an M4 thread and 16mm length, supplied with an MC hex Pozi head. It is a fastener used in the assembly and servicing of Baxi and Potterton gas boiler appliances, listed under the manufacturer part number 633973. The screw sits within the screws, nuts, bolts and clips category of gas boiler spares.
Signs this part needs replacing
- The Pozi recess is rounded or chewed, so the driver slips under load
- The head is corroded, rusted or has seized into the fixing point
- The screw has been removed during a service or repair and is no longer serviceable
- The thread is damaged, cross-threaded or stripped
- The fastener is missing from a casing, panel or component fixing point
Before you order
- Confirm your appliance model against the fit list above before ordering
- Check the thread size and length required at the fixing point, as M4 x 16mm is specific
- Check the head type and drive required for the location you are working on
- Confirm how many fixings are needed for the job
Compliance
| GC number | 402-199 |
|---|---|
| Alternative numbers | 1124220 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI ECOGEN 24 | 41-075-60 | 41-075-60 | — | — |
| POTTERTON FIRESIDE SUPER | 44-590-13 | 44-590-13 | — | — |
| POTTERTON FIRESIDE SUPER BBU / FIRE | 44-590-13 | 44-590-13 | — | — |
| POTTERTON FLAMINGO 2 CF 20/30 | 41-605-16 | 41-605-16 | — | — |
| POTTERTON FLAMINGO 2 RS 20/30 | 41-605-15 | 41-605-15 | — | — |
| POTTERTON FLAMINGO CF 20/30 | 41-601-33 | 41-601-33 | — | — |
| POTTERTON FLAMINGO RS 20/30 | 41-601-23 | 41-601-23 | — | — |
| POTTERTON FLAMINGO RS 50S - FURIGAS | 41-601-43 | 41-601-43 | — | — |
| POTTERTON KINGFISHER 2 CF 100 | 41-607-11 | 41-607-11 | — | — |
| POTTERTON KINGFISHER 2 CF 125 | 41-607-15 | 41-607-15 | — | — |
Showing 10 of 72 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
BAXI appliance manual — ECOGEN 24 (GC 41-075-60)
manualmanualPOTTERTON appliance manual — FLAMINGO 2 CF 20/30 (GC 41-605-16)
manualmanualPOTTERTON appliance manual — FLAMINGO CF 20/30 (GC 41-601-33)
manualmanualPOTTERTON appliance manual — FLAMINGO RS 20/30 (GC 41-601-23)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 CF 100 (GC 41-607-11), KINGFISHER 2 CF 80 (GC 41-607-10)
manualmanualPOTTERTON appliance manual — KINGFISHER 2 CF 40 (GC 41-607-07), KINGFISHER 2 CF 40 TTB (GC 41-607-34), KINGFISHER 2 CF 50 (GC 41-607-08), KINGFISHER 2 CF 60 (GC 41-607-09)
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 — NETAHEAT 10/16 ELECTRONIC - SERIAL No 1000 UPWARDS (GC 41-601-67), NETAHEAT 16/22 ELECTRONIC (GC 41-601-66), NETAHEAT 6/10 ELECTRONIC (GC 41-601-68)
manualmanualPOTTERTON appliance manual — PRIMA 80F (GC 41-607-32)
manualmanualPOTTERTON appliance manual — PROFILE PRIMA 80E (GC 41-605-74)
manualmanualPOTTERTON appliance manual — SUPRIMA 100 (GC 41-607-82)
manualmanualPOTTERTON appliance manual — SUPRIMA 100 L (GC 41-590-48), 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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