Nord-Lock® SC wedge-locking washers for steel structures, steel-steel EN 1.7182, through-hardened with a zinc flake coating. These washers provide an effective anti-rotation lock in the event of impact loads or vibration stress. They allow for quick and easy assembly and disassembly, and feature installation safety due to chamfers on both sides. The locking function remains effective even with lubrication, ensuring constant friction conditions. They are reusable and offer high corrosion resistance, reliably securing connections, even for those with short clamping lengths. Traceability is ensured thanks to laser marking.