The Golden Nut Tower

I spotted a shallow plastic sorting bin tucked right behind the paint swatches, overflowing with shiny brass hex nuts and silver flat washers! Without waiting a single second, I dropped onto my knees, grabbed the widest brass nut with both hands, and planted it flat on the concrete. Clink! Then came another, and another, stacking them carefully into a gleaming little golden tower. When I balanced a wide silver washer right on the top rim, it sat perfectly level! I leaned back on my heels, gave the pavement a bouncy tap with my feet, and tossed both arms high in victory!