hi alex
searching my reciepts i had some of them that i bought as spares back in 2013, were they plastic then? so you're saying they are alloy now? the ones i have are plastic and as far as i can remember i would have only bought poles or brushes etc from you. but maybe i'm wrong on this?
Hi Roland
I have looked back and for a short while in 2011/12 these were supplied with plastic barrel nuts, but this was replaced by alloy in 2012. So you may have a very old angle adapter that has a plastic thread. At 7-8 years old the plastic has probably become more brittle with age and use.
Looking at your account it appears that you bought a replacement lever set for the goosenecks this month - the barrel nut in this will be alloy.
We do not sell these alloy barrel nuts on their own as I do not think we have ever had one fail in use. If you do want to buy just a barrel nut on its own then you can buy the barrel and locking nut from a clamp lever set and these fit