Could not reuse the torx head bolt on my windshield because it wasn't nearly long enough to attach bag to windshield. The nut, bolt and washer that came with it was a cheap hex head and not a good look. So I had to purchase a 1.5' round head allen bolt and a bunch of washers to make it work. In the end it worked out and it's a good value at 42 bucks with lotsa room for shades, phone, chap stick, etc.
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