Threadlocking solutions

Loctite threadlockers lock and seal your threaded assemblies, protecting against vibration, corrosion, and galling. The liquid products fill the gaps between the threads. When used to secure threaded assemblies, Loctite threadlockers create a unified assembly and prevent corrosion from forming between the threads.

LOW-STRENGTH (Loctite 222) Low-strength applications are those with fasteners less than 6mm and require removal for service and maintenance without the use of heat for disassembly. These applications are best served by LOCTITE purple threadlocker, also known as LOCTITE 222. This low-strength threadlocker cures in 24 hours and can be used on metals such as aluminium and brass. LOCTITElow-strength threadlockers have many uses, from carburettor screws to eyeglasses to small screws on laptops. Due to the threadlocker being low strength, it can be removed with the same tool used to put the project together. It is available in an easy-to-use liquid application.
MEDIUM-STRENGTH (Loctite 243) Medium-strength applications are those that require disassembly with standard hand tools without heat on 6mm to 22mm fasteners for easier service and maintenance. The majority of threadlocker applications fall under this category. These applications are covered by LOCTITE blue threadlocker medium strength adhesives. The products have a fast fixture time and cure fully in 24 hours on most applications. They are available in liquid and semi-solid stick forms, as well as primeless grades.
HIGH-STRENGTH (Loctite 270) High-strength applications are those that require the highest strength possible on 6mm to 22mm fasteners. LOCTITE high-strength threadlockers cure in 24 hours on most applications and are available in liquid and semi-solid stick forms. For removal, it may require localized heat (260°C) and then disassembly with hand tools while still hot. A primerless grade high-strength threadlocker is also available.
PRE-APPLIED SOLUTIONS (Loctite 248, 268) Pre-applied threadlocking coatings replace conventional adhesives and sealants, providing reliable threadlocking and effective sealing. These dry-to-touch coatings are ready for immediate assembly, eliminating the need for additional adhesive or sealant application. Available in different strength levels, they offer excellent temperature and chemical resistance and can be colour-coded for easy identification. Their ease of use and reliable performance make them an ideal solution for high-volume manufacturing, especially in the automotive industry.