This single coil spring washer with a rectangular section, made from A2 stainless steel, offers reliable corrosion resistance and enhanced durability, making it suitable for a variety of indoor and outdoor applications. Its spring tension design effectively maintains bolt tension under vibrations, preventing loosening in fastening assemblies. The A2 stainless steel material provides resilience against rust, making this washer an excellent choice for construction, automotive, and general-purpose applications where secure, long-lasting fastening is essential.