Greg:
There are some split bolt connectors that are listed/labeled as 'suitable for grd/bond' (my words) that are used on pool installs. They are also 'DB' and concrete encasement.
I've also seen crimp tap connectors (HyLink)used for the bond taps. Then, there are the few who don't do pools on a regular basis that use 'whatever is in the truck'
Cadweld and crimp is the norm at the data centers and cell towers.
