They are too small for plumber's supplies. I think that you would be better to try refrigeration repairers or their suppliers; they go in for capilliary tubing and its fittings.
Peter.
I have a box of small olives (various) sizes that i bought years ago at a carboot... if you draw blank with ASAP I'll dig 'em out and see what is in there... BTW I think they are brass and prob originaly for gas fitting.
Tried to place my order with asap but unfortunately the 1/2 dozen dont meet the minimum order requirement of £3. Blast. So now I have to consider ordering a new toilet as that is one of the things I need that they sell. I was hoping that would be a spring job as well. But looks like too keep warm (olives are for the heater fuel pipe) i need to buy a heads. /forums/images/graemlins/shocked.gif
Hardly a great loss especially when you think how much the time you will waste in a fruitless attempt to find a mail order company with a minimum order of £1.68 or less /forums/images/graemlins/confused.gif
Try your local caravan supplier I think they may do 5mm LPG stuff.
After that there is all the hydraulic engineers and instrument suppliers that do air logistics and controls.
A google should find someone on line who can supply you by post.
Have no problems with the min order. Just thought it funny that having looked through the catalogue i will probably end up spending quite a bit more with them and i get to sit on a new toilet in the warmth if getting the olives means the heating system is up and running. Looks ike a good excuse to do some winter shopping.