Good to know there's something up here... I've been searching for these nuts for half an hour now. I don't even have a bag 2704 on my packing list... Of course now I realize this is 11 years later than the OP and it's now page 28iS/U-02 step 2. Good to know they are only temporary, but still, I think I'll send Detective Nancy Baird a note...
Did you resolve this?- I have exactly the same issue and cannot find these nuts anywhere on the fuse packing list, and no bag 2704 either.
In the interest of future builders, I just sent an email to support to let them know to update either the plans or the bill of materials.