I'm not looking at the threaded region of the part. If you were to think of the threaded part as a bolt, I'm looking at the max. stress in the fillet between the bolt shank and head.
Thanks for your responses.
I am using COSMOS to look into the max. stresses at the shoulder fillet of a threaded part due to it's installation torque (using 2D axisymmetric elements, linear analysis). Simply applying the resulting axial force at the threads and reacting them at the "head" of the part results in...