I think this is valid -- I'm not a structural engineer so I can't speak to how an earthquake might behave differently than the tests in the Project Farm video,

I think this is valid -- I'm not a structural engineer so I can't speak to how an earthquake might behave differently than the tests in the Project Farm video, but I can imagine a scenario where a screw becoming a bit loose would create a situation that more closely resembles the repeated bend test. The IBC still outlines nails as appropriate light frame fasteners [0], and where I am (on Maui) there's no local provision in the code to allow swapping in screws. The GRKs [1, 2] and Simpson [3] screws others have mentioned are seemingly valid alternatives to 16d nails, but ultimately it's going to come down to what you're comfortable with, the local code, the inspector, etc. [0] https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#IBC2021P1_Ch23_Sec2304.10.2 https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#... [1] https://www.grkfasteners.com/structural/r4-multi-purpose-screw https://www.grkfasteners.com/structural/r4-multi-purpose-scr... [2] https://www.grkfasteners.com/structural/rss-rugged-structural-screw https://www.grkfasteners.com/structural/rss-rugged-structura... [3] https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdws-q_screw/p/strong-drive-sdws-framing-screw https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdw...