This hex nut with a metric fine thread is made from bright steel—steel without any coating or surface treatment. It's a strong material, but on its own, it offers little protection against corrosion. The nut is standardized to DIN 934 and has a strength class of |10|. Please note: class |10| nuts are rated according to DIN 267-4 and have a lower load capacity than class 10 nuts under ISO 898-2. In the event of mechanical overload, the threads on the nut or bolt may strip.