Review on 🔩 WoodPro Fasteners ST516X6 25PC 16 Inch Exterior: Premium Wood Screws for Durable Outdoor Applications by Tim Airy

Great screws. However, as another reviewer said, these screws are 1/4, not 5/16. I also had to pre-drill with a 3/16 bit to push the screw through a 2 x 8 pressurized 4 x 4 and then another 2 x 8. I also had to make sure to stay low on my variable speed drill. Otherwise the bit would slip out of the screw. But I bought a second pack.