Tommy Mac Discussions › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › What size screws do I use?
I want to attach 3/4″ plwood to a 4X4. What size screws do I use?
3 inch deck screws.
3-inch screws are far too long. You need 1-1/2 to 2-inch screws. Be sure to use galvanized if it is an exterior application. Helps to know the application when you post these questions.