Well actually, I did call LMC. The folks on the phone can only tell me what they see on the screen, which is that they are splined. They cannot say that they are anodized. But at least I am that far ahead.
However they did say that they would put in a mock order so that they could be looked at and answer my questions before I order them.
If you knew me you would know that I tend to be a bit an#l, however I just want to do it right the first time. That is why I am trying to make sure I get what I want. Even for something as small as a bolt and nut.