I bought these along with a deck attachment for my 10' x 20' deck project with 2' x 6' top planks. The device has worked well so far, everything is fine with these screws. The heads are too thick to fit in the mounting hole. I could live with driving them in without tools. These screws don't pull the boards down when tightened (due to the small heads). The screw will go right through the board if overtightened. To counteract this, I used an 8" C-Clamp to hold the top boards firmly against the frame. Several screws came loose easily due to excess paint in the head. Luckily I didn't have latches or anything. Let's see, what happens in a few seasons.My decking is varnished all over so the wood may or may not warp like other decking that has been treated with different products.I will update this review if there are any issues in the future.
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