Loctite Threadlocker - 555339 is a high-strength adhesive used for securing and sealing threaded fasteners. It is designed to prevent loosening and leakage due to vibrations, shock, and thermal expansion. This product is ideal for use in automotive, industrial, and household applications. It is a single-component, liquid adhesive that cures at room temperature and forms a strong bond between metal surfaces. This threadlocker is resistant to chemicals, oils, and solvents, making it suitable for use in harsh environments. It is available in a convenient bottle with a precision applicator for easy and accurate dispensing.