Review on 🔩 POWERTEC 71118 Double-Cut Profile Universal T-Track with Pre-Drilled Mounting Holes (2-Pack), 24-Inch by Hunter Feerey

Overall 5 stars. BUT what size screw to use? The answer seems to be #6: the #8 flathead from the product description doesn't quite sit under the rail. The head of the screw sticks to it a little. You have to juggle to get the head of the screw to be above the head of the screw. The #6 oval head worked, but also caused the screw head to momentarily stick on the rail. The #6 flat head makes for smooth operation, but feels like it's sitting deep in the countertop. No obvious problems, but I'd be concerned if I built a contraption that could be loaded. BTW, once you've drilled #8, you can't move to #6 without filling and drilling again (or flipping the base).