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Navien Screw Trus Head Taptite M4 x 10 S10A

Navien

Navien Screw Trus Head Taptite M4 x 10 S10A

Truss head Taptite screw, M4 x 10, S10A, for Navien NCB-CE ERP system and combination boilers.

Manufacturer part no.
20006531A
Showing prices

£3.91

£3.26 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 truss head Taptite screw, M4 x 10, marked S10A, manufactured by Navien for the NCB-CE ERP boiler range. It is a thread-forming fastener used to secure components and casing panels on these appliances. The truss head spreads clamping load over a wider area than a standard pan head, which suits thin sheet and panel fixings.

Signs this part needs replacing

  • Corrosion or surface rust on the head or thread
  • Rounded or chewed head that will not take a driver cleanly
  • Stripped or flattened thread that no longer bites into the parent material
  • Missing fastener leaving a panel, bracket or casing loose
  • Rattle or movement from a casing panel that should be fixed rigidly

Before you order

  • Confirm your appliance model against the fit list above
  • Check the thread size and length of the screw being removed, as other fixings on the appliance differ
  • Count how many fixings are missing or damaged before ordering
  • Check the mounting point itself is sound, since a Taptite screw needs material to form its thread into

Not sure which part?

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