So I ripped off my old tile countertops (I'm keeping the existing cabinets) and noticed that whoever attached the 1/2" plywood on top of the cabinets just nailed them in place. I need to raise the plywood in one corner to get it level and want to use screws instead of nails. I was going to use deck screw but not sure what length. I have 1-5/8" screws on hand but those seem too long. Any advice is appreciated. If it matters, I'm replacing with quartz countertops.