About Product:Threadlockers are superior to conventional lock washers, nylon inserts, and other mechanical devices because they secure the entire fastener assembly against loosening from shock and vibration by filling the space between threaded metal parts, curing to form a tough, adhesive bond and seal. They also seal the threads against leakage, preventing rust and corrosion. Threadlockers remain the most reliable way to lock and seal threaded fasteners of all shapes and sizes, before or after assembly..The price on the website doesn't trade, it's for reference only .