The issue I'm having in models and the detail drawing is when i have a thread of any kind in a part, and cosmetic threads shown, i can always see them thru the part. See the picture below. I can turn off the threads which removes the problem, but does not show the external thread. In complicated parts with multiple tapped holes i have to constantly hide the cosmetic threads because the dashed line can be seen thru everything.

Does anyone know how to show cosmetic threads, put hide the dashed line so i cant see it thru the part, only when directly looking at it.

This is driving me nuts!