LOCTITE 222 - Threadlocker - 250ml

LOCTITE 222 is a purple, low-strength anaerobic threadlocking adhesive designed to prevent loosening of threaded fasteners caused by vibration and shock. It is particularly suitable for small-diameter fasteners and adjustment screws where future disassembly is required.

LOCTITE 222 cures when confined between close-fitting metal surfaces in the absence of air. It fills the clearance between mating threads, helping prevent unwanted movement, leakage and corrosion while allowing the fastener to be removed using conventional hand tools.

Key Features

Low-strength threadlocker

Purple color for easy identification

Ideal for small threaded fasteners

Helps prevent loosening caused by vibration

Suitable for adjustment screws and assemblies requiring periodic adjustment

Allows relatively easy disassembly using standard hand tools

Helps seal threaded connections against leakage and corrosion

Suitable for a wide range of metal substrates

Typical Applications

LOCTITE 222 is commonly used on:

Small nuts and bolts

Adjustment and set screws

Instrumentation equipment

Carburetor and control assemblies

Small machinery components

Electrical and electronic equipment

Precision mechanical assemblies

Threaded fasteners requiring regular adjustment or servicing

How LOCTITE 222 Works

When applied to a threaded connection, LOCTITE 222 occupies the microscopic gaps between the mating threads. In the absence of air and in contact with metal surfaces, it polymerizes and forms a durable bond. This helps prevent the fastener from rotating under vibration while still allowing subsequent removal when required.

Application Procedure

Clean the threads and remove oil, grease, dirt and other contaminants.

Apply a small amount of LOCTITE 222 to the threaded area.

Assemble the components and tighten to the specified torque.

Allow the adhesive to cure before subjecting the assembly to full operating loads.

For inactive metals or difficult-to-bond substrates, an appropriate LOCTITE activator may be recommended.

Why Choose LOCTITE 222?

LOCTITE 222 is a good choice when you need vibration resistance without making future disassembly difficult. Its low-strength formulation is especially useful for smaller fasteners and precision assemblies where components may need to be adjusted, serviced or removed regularly