The standard "UHF" PL259 RF "male" connector mates with a "female" SO239. N-Type is similar but they are not compatible with each other or interchangeable at all. I have ordered some SO239 connectors with a particularly long thread-body. I am interested in your opinion!
PS – Jim’s video was good in that it demonstrates that not all N-Typle connectors are the same. He got some really interesting results. Jim’s video is here: https://www.youtube.com/watch?v=N-62aHGnSz8