Permatex 2.5 mL Medium Strength Blue Threadlocker

Permatex Medium Strength Blue Threadlocker is an all-purpose threadlocking adhesive formulated to lock and seal threaded fasteners securely. It eliminates the need for stocking costly locknuts and lock washers by effectively preventing nuts and bolts from loosening due to shock, vibration, and thermal expansion. In addition to locking fasteners, it seals threads to protect against rust, leakage, and corrosion. Ideal for automotive, agricultural, and general mechanical maintenance, this medium-strength formula is suitable for valve cover bolts, water pump bolts, oil pan bolts, and various fastener assemblies. It cures reliably between engagement threads and can be easily disassembled using standard hand tools when service or repair is required.