LOCTITE 243 is a medium strength blue threadlocker that seals and secures nuts, bolts and studs to prevent loosening due to shock or vibration.
LOCTITE® 243 is a versatile threadlocker that provides intermediate strength bonding. LOCTITE 243 is effective on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces. It is designed to tolerate light contamination from industrial oils (e.g. engine oil, rust removers or cutting fluids).