Plumbing question

I need to find a kitchen sink waste 90 degree bend but can't seem to find the right connection type. This picture is what I want http://www.wickes.co.uk/Wickes-40mm-Universal-Compression-90Deg-Knuckle-Bend/p/433159 BUT with one end a thread that screws directly into the underneath of the sink. So a thread on one end and a compression fit on the other.
The ones I've found have both ends with the compression fit as in the picture. My local hardware store only stocks the same, two compression end fits.
Can anyone point me in the right direction?
Ta
GG


I'm hoping to pick it up locally so a typical DIY store would be good but can order online.

 

Do you have a plumbing centre?
Often they will give a bit more in the way of advice rather than the likes of Wickes etc.

 

Yes go to a Plumb Centre , they will set you up

 

I agree with Pete.

However (and I am assuming that space is your issue), I would be looking for something like this......................
http://www.wickes.co.uk/Wickes-Flexible-Waste-Connector/p/431945

Or this used with a length of 40mm pipe and a compression fitting............
http://www.wickes.co.uk/Wavin-CV11-87-5-Deg-Knuckle-Adaptor-40mm/p/227142

 

We dragged myself to the nearest Plumb Centre (somewhere in the netherworld of a localish town) and got exactly the part I needed, chap there did say they are a bit of rarity so lucky I got one. Plumbing now sorted (till the next time ).

Cheers All
GG