On 5/2/2022, Tony Welland in Norway wrote:
"I am trying to identify the correct bleed nipple to my rear brakes. The ones I bought from MOSS UK don't seem to have right thread. The reason I am changing them is nut shape is getting rounded".

Nice picture. Not to worry. The new one should work, as long as the thread will screw together without binding. Someone found a cheaper way to make the parts in mass production. The new one has a rolled thread where the old one has the traditional cut thread, but the threads should still match okay.

However, .... On 5/5/2022, David Adams wrote:
"The surface finish on the cone end of the aftermarket looks like that on the aftermarket nipples I bought from Moss in 2014. In my recent caliper rebuild I could not get them to seal. I spun them up in a drill press and applied files and then emery paper but they still would not seal. I ended up making soft copper cones to form a gasket between the nipples and the seat in the caliper".