Not sure, there are some options for wrist rotate that I will discuss below.
All of the ASB-04 brackets include rivet fasteners and 3mm hardware.
No. I recommend the 645 or 5645 for this. 475 may work, but it depends on how much overshoot is acceptable. Although the base rotate servo doesn’t support any weight, it does have to move a large mass, which has it’s own issues.
You can use the ASB-16B as a way to use the LG’s wrist rotate.
or you can use the LPA-01 part to do it without adding as much length.
Note this method requires the LG Adaptor part.