Hi,

how can i simulate this threaded connection to get the right stresses everywhere, without rotate the part in 3d.

-If i fix the face of the bolt where it touches the "nut" (or use any advanced fixture) and take a load onto the nut the stress distribution there wont be accurate.

-cooling down the bolt (or warm up the nut) to reach the preload  can make deviation: The space between the threads will be different as initial and it can show higher/lower stress.

3D model uploaded