Cutting Metal Strip for the back suport of the sliding piece

The insert nut has been successfully hammered into the hole of a new pieces of wood without splitting this time. This time I cut the piece of poplar wood to keep the wood grain along with the longer side of the rectangular. Also the size of the hole is 3/8". Then glued much smaller piece of wood to wrap around the sliding bar. But I thought thin wood pieces would be too week to support backside against tension when I tighten the thumb screw again the sliding bar. So I decided to cut a metal strip to be screwed on the back of the sliding piece of wood. My Dremel tool comes very handy for this type of task.