Genuine OEM Hyundai Self-Locking Nut, part number 282352B720. This specialized fastener is designed to provide a secure and vibration-resistant connection for various components within the turbocharger assembly. Its self-locking feature prevents loosening under engine vibrations and thermal cycles, ensuring critical parts remain firmly attached. Using a genuine OEM self-locking nut guarantees the correct thread pitch, material strength, and locking mechanism for reliable and safe operation of the turbocharger system.