I am trying to put together a couple mounting kits for heat shields. I know what the kit will consist of but do not know the names of the parts. I've tried buying just the mounting kit from the Leo Vince universal CF heat shield but nobody who sells it will sell the mounting kit seperate. I've attached a picture of what one set would look like. Could you please help me with the names for these parts and if you know where I can get them would also be helpful. I would actually need the metal pieces on the left to have one taller than the other for the two sets I want to make.
I know the bolts/screws and washers but that's about the extent of my knowledge

I know the bolts/screws and washers but that's about the extent of my knowledge