John Dann wrote:
IIRC the size is 0.04", ie 40 thou. Don't be tempted to use one that's
a little too small or a metric size - it's not difficult to round the
'corners' of the hexagon in the grub screw by applying a little too
much torque on tightening and then there's a bigger problem!

JGD

Thanks John, if todays adventure hadn't worked, I would be asking your
good self where to send it to get it fixed :-)
Sept 1999 I think was when I bought the Davis WMII, so it's getting on
six years now. Always a worry.

Thanks

--
Keith (Southend)

'Weather Home & Abroad'
http://www.southendweather.net