Loctite Threadlocker 222 is a low strength, purple threadlocker designed for fasteners under 1/4-Inch (6 mm) that require occasional adjustment. Removable with hand tools for easy disassembly. Noncorrosive. The typical applications for this threadlocker is carburetors, relay locks, headlamps, throttle body assembly, choke assembly and fuel injection set screws, body panel mounting fasteners. Invented by Henkel as a revolutionary method to positively lock and seal threaded fasteners, Loctite threadlocker adhesives are used in a wide range of applications from delicate fuel injection components to heavy-duty transmission and engine assemblies. Specified by automotive OEM's and approved for use on factory assembly lines, threadlockers work by filling the spaces between threads. The result is a secure, one-piece assembly that will not loosen under stress.