Hahaha, "the floor monster". I have one of those too, the sucker hides under the bench and wins most of the time.
Jim, I'm going to try this stuff. My shop has hex rods in metal too.
I'm lucky to get my nuts and bolts in metric sizes. It's much easier to figure out. 1mm equals approx. 1inch. So lots of things can be done on a 1:25 model with 0.6 to 0.8mm nuts and bolts. Even though I'll use mostly 0.8mm as the o.6 are so tiny they're only seen in closeup pic. I just ordered 50 pieces, all in 0.8mm. If I go to the trouble of mounting them, I want to see them too.
By the way, for lug nuts I have 0.9mm, like almost an inch in 1:1. They still look too small! Just a FYI, don't worry about the super small ones, they are very tiny!
Michael