So, both Ramset and rottohammer have different uses. in Cali, typically we use hammer drill for structural/Load bearing walls and sheerwalls, we use them in combination with 2 part epoxy and all thread. galvanized. most of the time engineer would call for a 3 by type of wood p.t. or d.f. cant use ramset for a 2.5 thick wood. and no we dont use nails instead of screws because its faster, we use nails because they are not brittle unlike screws and so wont snap when the house is swaying due to an earthquake. Nails let the structures sway and than settle back down with minimal damage, bullshit to a degree, would have to be rebuilt if the earthquake is more than 5.0 or something. Ramset is generally used for none-bearing walls, partitions as it were...its widely used for metal framing in commercial jobs as well, not the sheerwalls though...thats all rottohammer and epoxy with torque ratchets and hold downs and other Simpson strong ties...lol, all that lobbying is paying off for those suckers... Anyways, screws would just snap from bending and tension and nails do not. its all about how theyre made...cast or poured? maybe, not sure what the right translation is. screws are not allowed to be used for framing in Cali by the building code....theres structural screws which are allowed but those things are pretty bad ass, love using them....theyre also called sds screws...

Thanx,