2" length is ideal for 1 or 2 3/4 plywood fasteners. I bought this hex bolt because I was looking for a 1/4-20 2" hex bolt that I could buy in bulk and use in my Powertec T-rail for my fasteners. I was hoping it would fit into the T- Rail would fit without rotating but it rotates 50% of the time If you push the bolt to the side it works (doesn't rotate) but when the bolt is in the middle of the rail the bolt rotates and won't tighten.But if you fix the screw head with tape, it works well.
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