This is driving me nuts.

Playing around with some 3D CAD having just "upgraded" from using Sketchup

 

Looking at Creo Parametric at the moment, and one thing which is doing me head in is the "Hole" feature.

 

I want to add a hole for an M3 flat / countersunk bolt.

 

I can get it doing the countersunk bit, however, the actual shaft diameter it shows is 2.5. Now I thought that the 2.5mm would be the minimum diameter for a thread, not the clearance diameter needed for the thread of a bolt to pass through unrestricted, which, as I understand it, should be 3mm!

 

So does it mean that although it displays 2.5, in reality, it's 3 or is the diameter really 2.5?

 

edit: attached screenshot

Sorted. It was creating a "drilled" hole. Selecting the "clearance" hole icon enlarges the diameter so the thread clears it cleanly