Loctite Blue Stick Threadlocker (19g) - 37614 is a high-strength, medium-viscosity, anaerobic threadlocker designed to lock and seal threaded fasteners against loosening due to vibration and temperature changes. It cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. It is removable with hand tools for easy disassembly.