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Alpha Self-Tapping Screw M4.2 x 19mm 1.021226

Alpha

Alpha Self-Tapping Screw M4.2 x 19mm 1.021226

Self-tapping screw, M4.2 x 19mm, part 1.021226, for securing panels and components on Alpha gas boilers.

At a glance

  • Also known as 1258211
Manufacturer part no.
1.021226
Showing prices

£4.80

£4.00 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

The Alpha 1.021226 is a self-tapping screw measuring M4.2 x 19mm, listed by Alpha for use across its gas boiler range. Self-tapping screws cut their own thread as they are driven in, so they can be fixed into sheet metal and similar materials without a pre-tapped hole. It is used to secure panels and internal components on the appliances listed below.

Signs this part needs replacing

  • Corrosion or rust on the screw head or thread
  • Rounded or damaged head that will not take a driver
  • Stripped or worn thread that no longer grips
  • Missing screw leaving a panel or component loose
  • Fixing that keeps working loose in service

Before you order

  • Confirm your boiler model and, where shown, the GC number against the list above
  • Check the size and thread of the screw being replaced
  • Check how many screws are needed for the job
  • Inspect the fixing point for damage before fitting a new screw

Not sure which part?

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