Hot end specs please

I'd like to order a new nozzle and threaded rod behind the nozzle, which is quite a bit wider than I've used before. What are the specs needed to order new nozzle, threaded rod and heater block?

Shown below is gMax hot end next to E3D 3mm nozzle. Not sure what I should be measuring but the gMax diameter across the threaded rod is ~7.8mm, E3D diameter is ~5.8mm.



Staff member
Hi Don I just saw this post. We purchase our hotends from and he may be able to sell you the individual pieces you need since we buy them already assembled.