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Saunier Duval Screw M6 x 20mm S1046800

Saunier Duval

Saunier Duval Screw M6 x 20mm S1046800

M6 x 20mm screw supplied in a pack of 10 by Saunier Duval for Isofast Condens, Isotwin Condens and XEON Condens boilers.

At a glance

  • Also known as 1420645
Manufacturer part no.
S1046800
Showing prices

£9.22

£7.68 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

An M6 x 20mm screw manufactured by Saunier Duval and supplied in a pack of 10. It is a fixing used during the assembly and servicing of Isofast Condens, Isotwin Condens and XEON Condens appliances, securing components and casing parts to the boiler.

Signs this part needs replacing

  • The screw head is corroded, rounded or chewed, making it difficult to drive or remove
  • The thread is stripped or the screw spins without tightening
  • The screw is missing from a casing panel or component fixing point
  • The screw has seized in place and shears during removal
  • A fixing point is loose because the screw no longer holds torque

Before you order

  • Confirm your appliance model against the fitment list above
  • On Isofast Condens F35E, check the appliance serial number against the two listed ranges
  • Check that M6 x 20mm is the correct thread size and length for the fixing point
  • Confirm how many screws are required, as this part is supplied in a pack of 10

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.