Female thread to fit Siraya, BlueCast, PowerResin, ApplyLabWorks and probably others.
Male Thread to Elegoo/Anycubic/Prusa (old) brown resin bottle Lid.
Double check your printers tolerances!
I have printed these threads using PETG with great results, however if you're printing in resin make sure you account for any shrinkage.
An O ring would not be a bad idea if you have any TPU or Flexible resin around for a quick print. I will create and add one to this print if it's found to be necessary.
The author marked this model as their own original creation.