I used these screws to install 5/4x6 treated pine boards. I'm a DIY enthusiast and learn as I go. Two tips: Drilling pilot holes makes life much easier. Pre-drilling more than saves the time you spend removing cracked screws. Secondly, when tightening, you have to push the screw very hard so the bit doesn't break. If you use these two methods, these screws are fine.
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