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Halstead M5 X 16mm Cap Head Screw 204517

Halstead

Halstead M5 X 16mm Cap Head Screw 204517

M5 x 16mm cap head screw supplied by Halstead for use across a range of Halstead gas boiler models.

At a glance

  • Also known as 1290798
Manufacturer part no.
204517
GC number
E23-608
Showing prices

£2.23

£1.86 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

The Halstead M5 x 16mm cap head screw is a fastener used in the assembly and servicing of Halstead gas boilers. It is listed by Halstead under part number 204517 and sits within the screws, nuts, bolts and clips category of boiler spares. It is used to secure components where an M5 threaded fixing with a 16mm length is specified.

Signs this part needs replacing

  • The cap head is rounded or chewed, so the correct hex key no longer grips
  • The thread is stripped, cross-threaded or will not torque down
  • Corrosion or pitting is visible on the head or shank
  • The screw is missing after a service or component removal
  • The fixing will not hold the component securely in place

Before you order

  • Confirm your boiler model against the fit list above, including any serial number prefix shown
  • Check the existing fixing is an M5 x 16mm cap head screw before removing it
  • Check how many fixings are required for the job, as this listing is for a single screw
  • Retain any washers or spacers fitted with the original screw for reuse if they are still serviceable

Not sure which part?

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