Keep fasteners locked in place for good with Pro Lok Permanent Threadlocker. Built for demanding, heavy-duty environments, this professional anaerobic threadlocker delivers a rock-solid, vibration-resistant bond that holds up against extreme stress and harsh chemical exposure.

• Permanent Hold: Formulated to lock and seal metal nuts, bolts, and studs in applications where disassembly isn't part of the plan.
• Vibration & Leak Resistance: Keeps fasteners from working loose due to shock or vibration, while sealing threads to prevent leaks and corrosion.
• Tough Chemical Resistance: Stands up to gasoline, diesel, antifreeze, transmission fluid, and engine oil without breaking down.
• Wide Temperature Range: Maintains reliable performance from -65°F to 300°F (-54°C to 150°C).
• Anaerobic Curing: Activates and cures in the absence of air when applied between closely fitted metal surfaces.