Genuine Loctite 243 medium strength threadlocker, supplied in a 24ml bottle. This versatile threadlocker is designed for the locking and sealing of threaded fasteners that require normal disassembly with standard hand tools. It is particularly effective on active metals like brass, copper, and passive substrates such as stainless steel and plated surfaces. The Loctite 243 formula is oil tolerant, making it suitable for use on fasteners that may have minor contamination from industrial oils, such as cutting, lubricating, or anti-corrosion fluids. It prevents loosening from vibration and shock, ensuring the integrity of assemblies in various applications.