I doubt that number refers to the pin, the 06032 part means it's 06mm in diameter and 32mm long, that's the way Honda use the part numbers to identify bolts etc, the A normally refers to the finish, I think B means chromed, A might be zinc plated. It's more likely they used an opened bag just to put them into or the order already contained a 6 x 32mm bolt/screw and they used that bag for everything else so as to avoid losing any in transit.