The GRK screws mentioned above are called "GRK RSS"
Convenient source for small quantity individual single screws is Lowes, on the shelf next to the GRK R4 screws.
Prudent to confirm no wiring, plumbing etc in the way... Maybe overkill but I would go for 3" in the stud.
I installed 1,300 8" ones on a retaining wall job - NO predrilling of any kind...Only ONE failed in any way... and that was just gook in the torx hole.
Marc
https://www.lowes.com/pd/GRK-RSS-5-1...unt/1000694726
https://www.grkfasteners.com/getatta...ct-Information