Select one or more faces, enter a few dimensions and number of sides (10 in this case)
Gives 210 polys. Each rivet is a cone, equidistant from the 2 nearest edges (but distance could vary from each point if the angle between edges changes)
Also with added nuts!
Here is another option - I ran the same plugin 3 times here, just altering the number of facets and the height and width...
It seems that my nuts do not survive a save and reload of the 3DC file. They show up in the heirarchy but not on the model shape any longer.
Here is what I did. I created an AXLE for roller bearing trucks. Cylinder 2.179 0.200 0.200 (So it was small diameter) I places .03 size nuts in the end caps. (It made too many, so I deleted every other nut) Looked great as a result.
But when I reloaded the model after a save... they were visibly missing.