Hey guys I am going by the Project Arcade book, and I have attached my 3 inch 1inch wide scrap pieces to the top of my control panel. I used wood glue and a screw in the middle. Haven't done the finishing nails yet still looking for small 1/2" finishing nails. Anyways...On the little scrap wood pieces I am attaching to the interior side pieces of the control panel box. I figure I use some wood glue and let it dry but do I need to screw a screw into the side of the little wood pieces......also with the glue. It would be like screwing a screw into some the side where you can see the plywood.