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Biasi Tapping Screw ISO No.8B 4.2mm x 9.5mm BI1013110

Biasi

Biasi Tapping Screw ISO No.8B 4.2mm x 9.5mm BI1013110

Biasi tapping screw, ISO No.8B, 4.2mm x 9.5mm, for use in compatible Biasi gas boiler appliances.

At a glance

  • Also known as 1651305
Manufacturer part no.
BI1013110
GC number
409-732
Showing prices

£0.65

£0.54 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 Biasi BI1013110 is a tapping screw with ISO No.8B thread and dimensions of 4.2 mm x 9.5 mm. It is used as a fixing component in compatible Biasi gas boiler appliances. The part is listed under screws, nuts, bolts and clips for Biasi boiler spares.

Signs this part needs replacing

  • The screw is missing from its fixing point.
  • Corrosion or rust is visible on the screw.
  • The thread is damaged, crossed or worn.
  • The screw head is rounded or damaged.
  • The screw has seized or snapped during removal.

Before you order

  • Check the appliance model and GC number against the fitment list.
  • Confirm the existing screw is ISO No.8B, 4.2 mm x 9.5 mm.
  • Identify the correct fixing location on the boiler before ordering.
  • Inspect the mating thread or fixing point for damage.

Not sure which part?

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