LOCTITE® 243 Blue Medium Strength Threadlocker
This iconic threadlocker locks and seals metal nuts and bolts to prevent loosening due to shock and vibration. Medium-strength: removable with hand tools.

LOCTITE® 243 is a blue, general purpose threadlocker that provides a medium-strength bond. It works on all metals without primer, including passive substrates such as stainless steel, aluminum, and plated surfaces. Cures through most corrosion prevention oils and cutting fluids on "as-received" fasteners without aggressive cleaning.
We source any industrial chemical from our authorized brand network. Quote within 24 hours.
Request Sourcing QuoteWe source any industrial chemical from our authorized brand network. Quote within 24 hours.
Request Sourcing QuoteLOCTITE® 243 Blue Medium Strength Threadlocker
This iconic threadlocker locks and seals metal nuts and bolts to prevent loosening due to shock and vibration. Medium-strength: removable with hand tools.

LOCTITE® 243 is a blue, general purpose threadlocker that provides a medium-strength bond. It works on all metals without primer, including passive substrates such as stainless steel, aluminum, and plated surfaces. Cures through most corrosion prevention oils and cutting fluids on "as-received" fasteners without aggressive cleaning.







