I have a Creality CR-10s Pro. Like from the beginning. I just replaced the original nozzle with the spare that came with it. It's just the 0.4 brass nozzle. I recently replace the Bowden tube and ordered a replacement piece of the Capricorn tubing. It came with more fitting and some nozzles. Those nozzles are physically much smaller and the threads are coarse. They would not fit.
I found some other nozzles that "claimed" to be genuine Creality - and they are the exact same thing. Physically smaller and coarse threaded as well.
All I really want is the original brass nozzles. What gives? Where can I get them? I assumed that MK 8 would all fit. Evidently not.
One thing I noticed that none of the sheet metal wrenches that Creality includes with the printer will fit this smaller nozzle.