Hi,
our customer uses in Assemblies list with bolts/with exploded bolts the token ExactWeight.
The problem is that the ExactWeight of bolts is empty.
The info from general documentation is that "Exactweight is a token that display the exact weight of an object, which takes into consideration the lack of material generated by features present on the objects."
My suggestion is to change behaviour of the token ExactWeight and use weight value for bolts/nuts/washers.