US Part Number: 24300
Canada Part Number: 24300

Permatex® Surface Insensitive Threadlocker BLUE


OEM specified. Medium/high strength threadlocker for general-purpose applications. Especially well-suited for 1/4″ to 3/4″ (6mm to 20mm) fasteners that have a slight oil film. Prevents vibration loosening. Oil resistant. Removable with hand tools for easy disassembly.



Suggested Applications: Rocker studs, rocker adjustment bolts and bolts on valve and cam covers, oil pans, disc brake calipers, intakes, alternators, and pulley assemblies


Suggested Applications: Head bolts, case bolts, all shift assembly threads

US Item # CDN Item # Container Size Case
243002430010 ml bottle, carded 12
24027N/A6 ml tube, carded 6
US Item # Tech Doc File
24300 TDS  SDS  Canada part # SDS
24027 SDS  


  1. Clean and dry parts using Permatex® Surface Prep™ activator.
  2. Shake bottle of Surface Insensitive Threadlocker well before use.
  3. Apply Surface Insensitive Threadlocker to threaded areas and assemble parts. Refer to Technical Data Sheet for complete information.

NOTE: Surface Insensitive Threadlockerworks on metal parts. It is not recommended for plastics. Cured Surface Insensitive Threadlocker must be sheared (hand tools will do) before parts will separate.

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