Good Quality 2.5mm TRS Plugs?

I'm looking for a source of decent quality 2.5mm TRS plugs to make a new headphone cable, preferably from a UK or EU supplier so postage isn't astronomical. I can get them cheaply at Ali Express but no idea of quality; I'd like gold plated and insulation that doesn't melt under soldering at least. Does anyone know of such a thing?

P.S I want to change the cables for practicality, current set is just a bit too short and needs an adaptor at the amp end - I have no illusions that this will 'improve' the sound...
 
I couldn't find anything from the usual good quality suspects (Cliff, Neutrik, Switchcraft, Amphenol) but Thomann has a few pre-made headphone cables with a 2.5 jack in one end, go to headphone accessories -> headphone cables -> filter for output connector = jack 2,5 mm TRS male. They are expensive but it may be your best bet...
 
Yes, unfortunately they are commonly used. They suck.
I have bought connectors such as these from aliexpress and they seemed to be decent. Furutech makes some 2.5mm but they are obscenely priced and most seem to be TRRS.
This site has these which look to be pretty good and the price isn't horrendous.