The M4 Square Spring Washer, crafted from A2-304 stainless steel, ensures optimal performance in securing fasteners. Conforming to DIN7980 standards, this washer offers exceptional corrosion resistance and durability, making it ideal for various industrial applications. Its robust design provides reliable tension and prevents loosening under vibration, enhancing the longevity of your assemblies. Perfect for maintaining structural integrity, this washer is a vital component for engineers and professionals seeking dependable fastening solutions.