Maximize the efficiency of your assemblies with our 20 Zn AA flat washer conforming to DIN 9021, designed to evenly distribute load and prevent loosening under vibration. This essential component, manufactured with precision, provides an enlarged support surface, increasing the safety and stability of connections on Granalu semi-trailers. Its zinc finish offers additional resistance against corrosion, ensuring long-lasting durability and reliability for your most demanding applications. It is the perfect choice to reinforce the structural integrity of your vehicle.