Review on 🔩 SPAX Stainless Steel Double Thread Fasteners: Enhancing Screw Performance with Precision by Jeff Leu

I'm an engineer and I'm impressed with the amount of engineering that went into this screw. The serrated thread on the end helps cut the wood instead of breaking it, the smooth portion allows the plank to pull itself toward the joists, and the square shank keeps the blade from popping out like the Phillips heads do on me do. I decided to buy stainless steel screws when I was replacing some decking boards and the regular decking screws I bought from Home Depot or Lowes were almost completely rusted after only 4 or 5 years. I live in Tulsa so it's not a salt water issue, just a normal open sun environment that gets wet when it rains. I had to drive about 50 of these for the repair I did, but there wasn't a single problem unbolting or removing the heads. I've had spax screws since remodeling a kitchen and using this brand to screw kitchen cabinets together and attach to the wall. Not a single screw came loose, and I drove 3-inch screws into fairly hard, dense-textured wood. Addition to my first review. I don't like her like I used to. The square head actuator is not as good as the Tstar. I removed a lot of them so I switched.