Hey Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
Moseso
Jedi Knight
Offline
I'll do what I can for a picture -- it may be a week, or two. The car has been put to sleep for the winter, and will be undergoing some disassembly for winter projects soon. The wheels will be coming off, so it won't be too hard to get the shots...
My thinking on the engineering: The center cap is plastic. I didn't want to put enough torque on the screw to trust a lock washer. Therefor: the threaded rod is jammed tight to the end of the screw on the globe cap, inside the coupler. Then a nylock nut is gently tightened to the inside of the plastic center cap. That should keep 'em from falling off, without the danger of breaking the plastic center cap.
My thinking on the engineering: The center cap is plastic. I didn't want to put enough torque on the screw to trust a lock washer. Therefor: the threaded rod is jammed tight to the end of the screw on the globe cap, inside the coupler. Then a nylock nut is gently tightened to the inside of the plastic center cap. That should keep 'em from falling off, without the danger of breaking the plastic center cap.