This DIN 934 hex nut is made of steel with an electrolytically zinc-plated finish, making it suitable for indoor use or applications with very mild exposure. It features metric threading and is standardized to DIN 934. Please note: Class |10| nuts are rated according to DIN 267-4 and have a lower load capacity than Class 10 nuts rated to ISO 898-2. Mechanical overloading can cause the threads on the nut or bolt to strip.