How to make dynamic bolt details on parts/models?

I have no idea about what approach I should take for making a system that would automatically outline parts/ or maybe meshes with bolts. Here is a picture of the “bolts at edges” I want to do:
renaujltshow

if u want the outline to appear automatically, i think u should create a model that holds the bolts and then apply a highlight to that model.

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That isn’t what i am asking, I am asking how I can make bolts appear dynamically based on the size of the part at the edge of said part