Interesting. Based on George's photo which matches my research it is the last 2. This of course does not match up with Charlies comments where he indicates it was only the back one, or the one white car I posted earlier that had 3. One thing that does seem consistent is no lockwashers.
Bruce 100 - good question - a tough detail. Being as we are not an assembly line, we all do not have the luxury of doing it in the order the factory did. While there is always more than one way to skin this cat, what I did was I painted my bolts and washers off the car - set them up by poking small holes in a piece of semi rigid cardboard for the bolts to pass through to head height, and using old nuts as pedestals for the washers to sit on. I got a pro spray can from the body shop that was a perfect color match for the car. Then I did my first batch - with primer, base, and clear coats as per how the shop painted the car (
yeah yeah, I know - it's not single stage paint like the original). Anyway, I was not happy with the result as the definition and markings of the original bolt heads got lost. So I stripped them and did them over this time with real light dusting of primer and then the lighter base/clear which I was happy with. I've since ended up using the spray bomb for all sorts of little pieces that have come up.
To instal, the first step is be sure they are well cured - I left mine several weeks so the paint got hard. Then I used plastic wrenches and a socket inserts that I sourced from Bojo. This eliminates all but the very smallest paint chips which I touched up with a really fine brush.
https://www.bojodownloads.com/downloads/BrochureSocketInsertsandWrenches.pdf
And of course, in the end we have to also remember it's all personal taste. I've also seen lots of cars with unpainted new hardware/bolts. I personally like the look of that approach too.