Loctite 243™ and Loctite 263™ are state-of-the-art anaerobic adhesives that prevent fastener loosening caused by shock, vibration and temperature-induced expansion and contraction. Loctite 243 is a medium-strength, blue threadlocker that can be disassembled using standard hand tools. Loctite 263 is a high strength, red threadlocker for applications where permanent assembly is required. Both of these anaerobic adhesive products provide a leakproof, corrosion-free seal of the threads.

For detailed anaerobic adhesive information and threadlocker datasheets or to purchase products, click on a link below:

Loctite 243 Medium Strength, Blue Threadlocker
Loctite 263 Permanent High Strength, Red Threadlocker