This tall self-locking hex nut, manufactured to BN 205107-3, is made of steel with an electrolytic zinc plating, making it suitable for indoor use or applications with very mild exposure conditions. The nut conforms to DIN 6924 and ISO 7040 standards and features a metric thread. Rated at property class 8, it's designed to pair with bolts and screws of property class 8.8 or lower. The non-metallic locking element is a brown ring made of heat-stabilized polyamide, engineered to withstand temperatures from 150°C to 180°C.