Can GRKFasteners be used in decking for concrete fastening?
If it does not say ACQ approved on the box do not use them.
There also going to have to be case hardened to work in concrete.
#1 other then a bottom plate in a wall no pressure treated wood should be used inside a house.
#2 If you thinking of attaching this plywood to a concrete slab floor to be used as a subfloor not a great idea. For several reasons.