red thread locker

Perma-Lock by JB Weld

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J-B Weld Threadlockers provide a reliable and superior lock and seal for threaded fasteners. Ideal on all mechanical parts, body assemblies, and hundreds of other applications to prevent loosening of fasteners from shock and vibration. J-B Weld Perma-lock High Strength Threadlocker is ideal for heavy-duty applications requiring resistance to severe shock and vibrations. Heating and hand tools are required to separate parts.


  • Rocker Arms
  • Stud Bolts
  • Frame Bolts
  • Fasteners and Bushings
  • Loose Screws
  • Vibration Sensitive Items


  • Automotive
  • Threadlockers
  • And More

Ideal for 1/4" - 1" bolts

Temp resistant up to 300 degrees