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Worcester Bosch Hex Flange Nut M6 DIN6923 T70427140600

Worcester Bosch

Worcester Bosch Hex Flange Nut M6 DIN6923 T70427140600

Worcester Bosch T70427140600 hex flange nut, M6 thread to DIN 6923, for Greenstar gas boiler assemblies. Supplied singly.

At a glance

  • Part type: Bolts, nuts and screws
  • Also known as 1030767
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
T70427140600
GC number
J04-355
Showing prices

£3.37

£2.81 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 T70427140600 is a hex flange nut with an M6 thread, manufactured to the DIN 6923 standard. It is a fixing used within Worcester Bosch Greenstar gas-fired boiler assemblies, where the flanged base spreads the clamping load across the component it secures. It is a service item rather than a functional control part, and is replaced when the original fixing is lost, damaged or seized.

Signs this part needs replacing

  • The nut has been removed during a repair and the original is no longer serviceable
  • Rounded or chewed hex flats from a previous attempt to undo a seized fixing
  • Corrosion or surface pitting on the nut body or flange face
  • The fixing will not hold torque and works loose after reassembly
  • Vibration or movement at the joint the nut secures

Before you order

  • Check the GC number and appliance serial plate against the compatibility list to confirm the fixing is correct for your model.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
  • Confirm the thread size and standard against the exploded diagram for your appliance before ordering, as more than one fixing size may be used on the same assembly.
  • Check whether a washer or seal sits with this fixing on your model and order it separately if it is also being replaced.

Not sure which part?

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