Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Worcester Bosch Nut M5 Flat Back M/S 87186852220

Worcester Bosch

Worcester Bosch Nut M5 Flat Back M/S 87186852220

M5 flat back nut from Worcester Bosch, supplied for use on Greenstar Danesmoor boiler ranges.

At a glance

  • Also known as 1022725
Manufacturer part no.
87186852220
Showing prices

£4.79

£3.99 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 NUT M5 FLAT BACK M/S is an M5 flat back nut manufactured by Worcester Bosch. It is a small fixing component used on the Greenstar Danesmoor family of oil-fired boilers and their System and Utility variants. It secures the mating fastener in place where a flat-backed nut is required.

Signs this part needs replacing

  • Threads are stripped, crossed or will not run freely on the mating stud or bolt
  • The hex flats are rounded, so a spanner or socket will not grip properly
  • Corrosion or pitting on the nut body, common around boiler fixings exposed to moisture
  • The nut has worked loose and will not hold torque
  • The nut is missing or was lost during a service or repair

Before you order

  • Confirm the thread size is M5, as stated in the part name, matches the fastener being replaced
  • Check the appliance model against the fit list above
  • Compare the manufacturer part number 87186852220 with the number on the existing component or parts list
  • Consider whether any washers or mating fasteners on the same assembly also need replacing

Not sure which part?

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