The flat locking nut with metric thread for DIN 2353 connectors – partition fittings, type MP – is a reliable and durable solution designed for demanding hydraulic and pneumatic applications. Available in three series, LL (very light), L (light), and S (heavy), it ensures precise compatibility with a wide range of systems. Manufactured from high-quality carbon steel and finished with a zinc-nickel coating of 6–10 µm, the nut offers exceptional protection against wear and environmental factors. Its advanced surface treatment guarantees outstanding corrosion resistance, withstanding up to 720 hours in a salt spray chamber without visible damage, making it ideal for use in harsh industrial conditions. This combination of strength, precision, and long-lasting performance provides engineers and technicians with a secure and efficient fastening solution that enhances system reliability while reducing maintenance costs.