These hexagon nuts are precision-engineered for industrial fastening applications requiring a left-hand metric thread. Manufactured from steel, they conform to property class |6|, ensuring consistent mechanical performance suitable for a broad spectrum of general industrial uses. The plain surface treatment provides a natural finish, offering basic indoor corrosion protection. Featuring a hexagonal driving configuration, these nuts facilitate efficient installation and removal with standard tooling, ensuring broad compatibility within existing maintenance and assembly workflows. Designed and produced to meet stringent international standards, this product range adheres to DIN 934, NEN 1560, and NF E25-401 specifications, guaranteeing dimensional accuracy and consistent quality across all variations. They are engineered for secure integration with corresponding left-hand threaded bolts, studs, or machine screws, forming robust assemblies critical for machinery, equipment, and structural components where reverse rotation prevention or specific assembly requirements are paramount. This series of hexagon nuts provides engineers and maintenance professionals with a dependable, standards-compliant fastening solution for demanding technical environments.