3D printed thread never worked for me from the default thread from Fusion360. These threads are meant for CNC machining, with tight tolerance.
But normally with 3D printing, male thread is 0.1 to 0.2 mm larger and female thread is 0.1 to 0.2mm smaller. Unless you can change the thread tolerance to +0.5mm in your design, it would never work.
My solution is just to tap it after printing for both male and female thread
