Yahhh...far as I understand, one does well to Load in deference for the actual particulars of the Arm in question, in all details.
OAL can vary a little, of course, with Bullet Type, and or what one has in mind.
Crimp, when called for, will be according to the Case as itself, as it actually is for length or as one has trimmed one's Cases for uniform length, lets hope!...with Dies adjusted in deference to that.
Thread Count of Dies, or what a turn or part of a Turn will mean in Thousanths, fun to refresh dusty-for-me anyway math skills with, but, is mox nix or no more than incidental to how one acheives the results one is after...which for many of the features of the finished Cartridge, will be impirically arrived at by patient experiment, checking things, and seeing how it fits the Arm.
Older Presses often had proprietary Thread too, Star, Hollywood, Ideal or Lyman 310 Dies and Presses, etc, their Dies were not the same Threads as most have now.