PERMATEX Large Diameter Threadlocker Red - 250 ml bottle

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Permatex® Large Diameter Threadlocker RED is a high strength anaerobic threadlocking material, which cures between engaged threads to form a unitized assembly that resists virtually all leakage, shock and vibration. The product is a single component, anaerobic liquid that cures when confined in the absence of air between close fitting metal surfaces. Ideal for all 1 inch or larger diameter nut and bolt assemblies where future disassembly is improbable. Excellent chemical resistance and temperature resistance range of -54°C to +149°C (-65°F to +300°F). Meets Military Specification Mil-S-46163A Type I, Grade L.


  • Eliminates vibration issues
  • Seals against leakage
  • Prevents rusting of threads
  • Cures without cracking or shrinking
  • Easy application
Frame brackets
Suspension fasteners
Shock absorber mounts
Wheel studs
Frame bolts
Large studs
Physical Properties:
Chemical Type: Anaerobic diamethacrylate ester
Appearance: Opaque red flourescent liquid
Specific Gravity: 1.12
Viscosity @ 25° C,mPas (cP): 6,000 to 7,000
Flash Point (TCC), ° C (° F): >93 (>200)