Help with sourcing a tap fixing
 

Hello,

I'm trying to source a fixing for the following tap:

http://cgi.ebay.co.uk/XENON-KITCHEN-...ayphotohosting

The part I'm after is a brass, threaded, barrel-shaped fixing that
screws to the bottom of the tap. It feeds through the worktop and is
held in place by a nut screwed onto the fixing under the base of the
worktop. The problem I've got with the fixing that comes with the tap
is that it is too short to protrude through the bottom of my worktop
so I need it to be longer. The link shows the tap and has a diagram of
the fixing which is indicated by the number '45'.

I need the fixing to have a diameter of 30mm and a length of at least
50mm. Can you help please?

I know I could countersing the fitting but I really don't want to do
that if I can avoid it.

Thanks very much,