This DIN 934 hex nut is made from plain steel, meaning the material has no coating or surface treatment and offers virtually no corrosion protection on its own. The nut features metric threading and falls under strength class |8|. Please note: class |8| nuts are rated according to DIN 267-4 and have a lower load capacity than class 8 nuts rated per ISO 898-2. Mechanical overloading can cause the threads on the nut or bolt to strip.