How do I display threads in a drawing on topsolid7?

Hello, being a beginner on this software some features escape me, in this case I created M8 tapped holes on my part only the software indicates M6,8. 6.8 being the diameter of the hole I told myself that the dimension is therefore attached to the inside diameter of the hole, my solution would be to attach my dimension to the thread representation but unfortunately the latter remains nowhere to be found. Is there anyone who can point me in the right direction? thank you in advance:)

 

Hello

You have to make your dimension on the outer circle (circle of the tap), by clicking on it it should display M8.