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).

LOCTITE® 577 is designed for locking and sealing metal threaded pipes and fittings, and other threaded assemblies. The product instantly seals at low pressure for metal pipes and fittings. It does not loosen, shrink or crack. It has excellent chemical and thermal resistance and prevents migration into the fluid after application to the part.

LOCTITE® 271 is a red colored methacrylate based threadlocker with low viscosity and high strength. Fixture time on steel of 10 min, 5 min on brass and 15 min on stainless steel. Ideal for applications where product migration should be avoided. Tolerates light oil contamination. Can be used on all metals. Breaking torque of 26 Nm for maximum diameters of M10. Fluorescence under UV light.

LOCTITE® 55 is designed for sealing and locking metal and plastic pipes and fittings. It is a seal without polymerization which ensures immediate sealing at maximum pressure. The ideal choice for quick, easy and reliable sealing. The product is approved for use with gas or potable water and meets NSF/ANSI Standard 61.