This all-metal self-locking hex nut, also known as a lock nut, features a built-in locking mechanism that helps prevent it from working loose under vibration or mechanical stress. Manufactured to DIN 6925 and ISO 7042 standards, it's rated at property class 10 and pairs with bolts and screws up to grade 10.9. Made from steel with an electro-galvanized finish, it's designed for indoor use or applications with minimal environmental exposure. The nut comes with metric threading.