3M 7100039159 Threadlocker TL22 Purple 50 Ml

Product Description

The 3M 7100039159 is a low-torque-removal threadlocker formulated for small-diameter, fine-threaded fasteners including nuts, bolts, and screws. Sold as a 50 mL unit of purple-formula anaerobic adhesive, it cures in the absence of air when confined between metal surfaces. The low-viscosity, low-strength formula is designed so fasteners remain removable with standard hand tools after curing, making it practical for assemblies that require periodic service. It resists corrosion, vibration, and shock loading once cured. Technicians working on HVAC equipment, electrical panels, plumbing fixtures, and general mechanical assemblies use this product where secure but serviceable thread locking is required.

This threadlocker is suited for light-duty fastening applications on small-diameter fine-pitch threads in both residential and commercial service environments. It is commonly applied during equipment assembly, repair, or preventive maintenance where fasteners are subject to vibration or thermal cycling but must remain field-removable. It works on metal-to-metal threaded connections and is appropriate for use by HVAC technicians, electricians, plumbers, and general maintenance professionals.

Key Features

• Low-strength formula allows hand-tool removal without heat or impact tools
• Purple color coding identifies the low-strength, fine-thread grade at a glance
• Prevents loosening caused by vibration and mechanical shock
• Provides corrosion resistance on threaded connections
• 50 mL bottle for bench or field use
• Anaerobic cure — activates when confined between close-fitting metal surfaces

Compatibility

Designed for use on small-diameter fine-threaded nuts, bolts, and screws in metal-to-metal threaded assemblies where low-torque removal is required.

Installation Notes

Application is typically performed by the trade technician servicing the equipment. Clean and degrease mating threads thoroughly before applying the threadlocker to ensure proper cure and adhesion. Apply a small, controlled amount to the male thread before assembly; excess product does not improve performance. Allow adequate cure time before placing the fastened assembly back into service, following the manufacturer cure schedule for the ambient temperature.

Technical Specifications

• Volume: 50 mL
• Color: Purple
• Strength Grade: Low (hand-tool removable)
• Thread Type: Small-diameter fine thread
• Weight: 0.2 pounds
• Unit of Measure: Each
• UPC: 00048011626024

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100039159