Loctite 290 – Threadlocker

Loctite 290 is a medium-to-high strength, green anaerobic wicking threadlocker designed to lock and seal pre-assembled threaded fasteners without the need for disassembly. Its low-viscosity formulation allows the adhesive to penetrate through the threads by capillary action, making it ideal for securing bolts, nuts, screws, studs, and other threaded assemblies that have already been tightened.

Loctite 290 cures in the absence of air when confined between close-fitting metal threads, creating a durable bond that prevents loosening caused by vibration, shock, and thermal cycling. It also seals threaded joints against moisture, oils, and other fluids, protecting the threads from corrosion and extending the service life of the assembly.

The threadlocker is suitable for use on steel, stainless steel, brass, and plated metal fasteners. Once cured, it provides excellent resistance to oils, fuels, hydraulic fluids, coolants, and many industrial chemicals, making it suitable for demanding industrial, automotive, and maintenance applications.

Key Features

• Medium-to-high strength anaerobic wicking threadlocker
• Low-viscosity formula penetrates pre-assembled fasteners
• Locks and seals bolts, nuts, screws, and studs without disassembly
• Prevents loosening caused by vibration and shock
• Protects threads from corrosion and fluid leakage
• Excellent resistance to oils, fuels, hydraulic fluids, coolants, and industrial chemicals
• Suitable for steel, stainless steel, brass, and plated metal fasteners
• Improves equipment reliability and reduces maintenance

Typical Applications

• Pre-assembled threaded fasteners
• Set screws and adjustment screws
• Electrical and instrumentation equipment
• Pumps and compressors
• Gearboxes and electric motors
• Automotive and industrial machinery
• Maintenance and repair applications

Benefits

• Secures fasteners without dismantling the assembly
• Prevents vibration-induced loosening
• Reduces maintenance costs and equipment downtime
• Protects threaded joints from corrosion and leakage
• Extends the service life of critical mechanical assemblies

Loctite 290 is a trusted wicking threadlocker for manufacturers and maintenance professionals who require reliable post-assembly locking and sealing of threaded fasteners, delivering long-lasting protection and dependable performance in industrial and automotive environments.