This all-metal self-locking hex nut features a built-in locking mechanism that helps prevent loosening caused by vibration or mechanical stress. Made from steel, it comes with a Cr(VI)-free zinc flake coating per ISO 10683 (480-hour NSS) and includes a lubricant. Manufactured to DIN 6925 and ISO 7042 standards, the nut has a metric thread and is rated at strength class 8, making it suitable for use with bolts and screws of strength class 8.8 or lower.