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Worcester Bosch Serrated Screw M4 x 7 87161066220

Worcester Bosch

Worcester Bosch Serrated Screw M4 x 7 87161066220

M4 x 7 serrated screw for Worcester Bosch Greenstar boilers and heaters, part number 87161066220.

At a glance

  • Part type: Bolts, nuts and screws
  • Also known as 1014997
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161066220
GC number
H04-110
Showing prices

£4.25

£3.54 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 Worcester Bosch 87161066220 is a serrated screw with an M4 thread and a 7 mm length. The serrations under the head bite into the mounting surface as the screw is tightened, which resists vibration loosening in service. It is a small fixing used across the Worcester Bosch Greenstar range of gas boilers and heaters.

Signs this part needs replacing

  • The screw head is rounded or chewed, so a driver no longer grips it cleanly
  • Visible corrosion or surface rust on the shank or head
  • The fixing has worked loose and the component it holds is no longer seated firmly
  • Thread damage or cross-threading in the receiving hole
  • The screw has been dropped or lost during a service strip-down

Before you order

  • Check the GC number and appliance serial plate to confirm the correct fixing for your model
  • Cross-reference the alternative part number 1014997 against any documentation you hold
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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