Oddly enough - I had gotten this constraint to work with another model (1st model in screencast), then I changed the bolt pattern in said model and was unable to re-create the bolt constraint again - using the same holes! These are all features created IN Fusion 360 mind you, not random geometry from another source.
Thinking perhaps it was an issue with my model, I decided to create a very simple version of the same setup in a completely new design (2nd model in screencast) - a cylinder with a 1in. deep 1/2-13 threaded 'hole' via the hole tool in the center of the bottom face of the cylinder. I then created a .125 thick 'disc' that mates up to the bottom of the cylinder and added a clearance 'hole' for the 1/2-13 in the center of the disc.
I created a static stress simulation to see what kind of deformation I will get on the 'disc' if I apply an offset force at the top of the cylinder which will be connected together via a 1/2-13 bolt with the outer face of the 'disc' constrained. When I try to add the bolt constraint it allows me to select the correct 'edge' for where the bolt head will go but will not let me select the 'threads' of the inside of the cylinder. Again, this is a hole created with the hold tool in Fusion.. I tried both with modelled threads and non-modelled...
I've attached a screencast of both instances
This behavior screams bug - but I have to say, the fact that this particular constraint doesn't have the ability to do multiple holes at the same time, or have templated bolt types, can determine a basic bolt type based on the selection, or flat out just doesn't work with the most basic geometry really drags down the 'professional' feel of Fusion.
