Self-locking Design: The nylon insert provides a locking feature, making these nuts self-locking for a secure hold that resists loosening under vibrations and torque. Versatile Use: Perfect for a wide range of applications, these hexagon nylock locknuts are ideal for securing bolts and screws effectively. Suitable for automotive, machinery, and home improvement projects. Material: Made from high-quality aluminum alloy, these flange nylon lock nuts are anodized for enhanced resistance and durability, ensuring long-lasting performance in various environments. Colorful Finish: Not only practical, but these nuts also feature a colorful anodized finish that adds a vibrant touch to your assemblies, making them as visually appealing as they are functional., Manufacturer: Osmond