Loctite Threadlocker - 487231 is a high-strength adhesive designed to lock and seal threaded fasteners to prevent loosening and leakage. It is a single-component, medium-viscosity liquid that cures at room temperature when confined between metal parts. This threadlocker is resistant to heat, vibrations, and chemicals, making it ideal for use in automotive, industrial, and other high-stress applications. It can be easily applied and provides a reliable and durable bond between metal surfaces.