The contact lock washer, medium NF E25-511, is engineered from high-quality spring steel, ensuring robust performance in various industrial applications. This washer features a Zinc Flake surface treatment that is Cr6+ free, adhering to ISO 10683 flZnnc standards, which enhances its corrosion resistance and longevity in challenging environments. The medium type designation indicates a balanced design suitable for a variety of fastening requirements, providing effective locking mechanisms that prevent loosening under vibration and dynamic loads. This product complies with the NF E25-511 standard, ensuring that it meets the necessary specifications for industrial use. The spring steel construction offers excellent elasticity and strength, making it suitable for applications where reliability and durability are paramount. The Zinc Flake treatment not only protects against corrosion but also contributes to a smoother surface finish, facilitating easier installation and reducing wear on mating surfaces. Ideal for use in sectors such as automotive, construction, and machinery, this contact lock washer is designed to perform effectively in both static and dynamic conditions. Its robust design and material properties make it an essential component for engineers and maintenance professionals seeking reliable fastening solutions.