It was an observation and I think it's cool nobody messed with the numbers here. I still have them on the end caps, too. Too bad no one can see these little details after assembly, but I'll put them in the car's assembly picture album.
Thanks for the info. I wrote down almost every nut/bolt/fastener on this thing as it came apart, but missed this one. I'm fitting things up right now and this item was AWOL.