This self-locking hex nut, also known as a lock nut, features a non-metallic insert (nylon ring) that helps prevent the nut from loosening under vibration or mechanical stress. Manufactured to DIN 6924 and ISO 7040 standards, it's made of steel with an electrolytic zinc-plated finish, making it ideal for indoor applications or environments with minimal exposure. The nut has metric threading and a property class of 10, and it's designed to pair with bolts and screws of property class 10.9 or lower.