Red steel countersunk serrated rivet nuts are designed to create strong and reliable internal threads in thin or hollow materials where conventional tapping is not suitable. Manufactured from steel for high strength and durability, they offer excellent resistance to mechanical stress in demanding professional and industrial environments. The countersunk head allows the rivet nut to sit flush with the surface, providing a clean finish while reducing snagging and surface wear. Serrations beneath the head help prevent rotation during installation and service, ensuring a secure hold even when exposed to vibration or repeated loading. The red finish supports easy identification during installation, inspection and maintenance. Commonly used in automotive assembly, engineering fabrication, construction and maintenance applications, these rivet nuts deliver consistent performance and long-term fastening reliability in both workshop and on-site settings.