Originally Posted by Luddite

If it's the small allen screw that holds the panel on (also used on the cover round the fuel cap), you want part no. 77350393B. If it's the one down by you knee, make sure you still have the small, silver aluminium top hat spacer washer (71614081A).

Give Craig and Luke a ring at Moto Rapido 01962 873981 they usually have a few in stock (75p last time I bought one).

The replacement screw will come with threadlock preapplied.