Loctite Blue 242 Threadlocker - 6 ml

  • Designed for the locking and sealing
  • Medium strength
  • Locks threads
Availability: In stock


Loctite Threadlocker Blue 242 is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. The product cures anaerobically, when there is an absence of air between close fitting metal surfaces. It protects threads from rust and corrosion and prevents loosening from shock and vibration. Loctite Threadlocker Blue 242 is particularly suited for applications on less active substrates such as stainless steel and plated surfaces, where disassembly is required for servicing.

  • Prevents rusting of threads
  • Can be removed with hand tools
  • Prevents loosening of metal fasteners caused by vibrations
  • Protects threads
  • Medium strength
  • Locks threads
Recommended For
  • Automotive – Valve covers, water pumps, alternators, oil pans
  • Maintenance – Light machinery, light conveyors, door hardware, tow motors
  • Home – Lawn mowers, grills, locksets, bicycles
  • Not for use on plastic parts, particularly thermoplastic materials where stress cracking of the plastic could result
  • Not for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials
  • If two inactive metals are used, use of a primer is required
  • Not for use in applications requiring "food safe" locking and sealing of fasteners

Contains methacrylate ester. May cause allergic skin reaction and eye irritation. Avoid eye and skin contact. Avoid breathing vapors. Use only with adequate ventilation.

First Aid

For eye contact, flush with water for 15 minutes; call a physician. For skin contact, wash thoroughly with soap and water. If inhaled, move to fresh air. If swallowed, do not induce vomiting. Obtain medical attention.

  • Color: Blue
  • Size: 6 ml
  • Base: Dimethylacrylate ester
  • Temperature: Above 50 °F


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