Thought I'd dig up this older thread rather than start new.

Large cap nuts -
Mine were in fair shape and best I can tell it appears like the caps were galvanized (clear zinc) and the base was yellow chromate.

Smaller cap nuts -
Again, in fair shape but it appears these were galvanized (clear zinc) on both the top and lower nut assembly.

While it makes little sence to me why two finishes, I'm just looking for confirmation if what I'm seeing is correct?

Thanks