LOCTITE® 243 Medium Strength Threadlocker – 50ml | Oil Tolerant | Blue | General Purpose | 243-50

Medium Strength Threadlocking Adhesive for Securing and Sealing Metal Fasteners

Supply Solutions Group supplies LOCTITE® 243 Medium Strength Threadlocker (Product Code 243-50) to organisations operating across mining, manufacturing, automotive, engineering, construction, transport, utilities, maintenance and heavy industry throughout Australia.

LOCTITE® 243 is a general-purpose, medium-strength threadlocking adhesive designed to secure and seal threaded fasteners against loosening caused by vibration and shock. The blue anaerobic adhesive cures between close-fitting metal surfaces when air is excluded, forming a durable bond that helps prevent unwanted movement, leakage and corrosion within threaded assemblies.

One of the key advantages of LOCTITE 243 is its oil-tolerant formulation, allowing effective performance on many fasteners that may have minor contamination from industrial oils, including engine, corrosion-prevention and cutting fluids. This makes it particularly suitable for maintenance and repair environments where completely pristine components may be difficult to achieve.

Its medium-strength formulation provides reliable locking performance while still allowing fasteners to be dismantled using standard hand tools when servicing or maintenance is required. This makes LOCTITE 243 an excellent choice for applications such as pumps, gearboxes, machinery, engines, mounting bolts and general mechanical assemblies.

Supplied in a convenient 50ml bottle, LOCTITE 243 is suited to workshops, maintenance teams, field service vehicles and industrial facilities requiring a dependable everyday threadlocking solution.

As an Indigenous-owned industrial supplier and procurement partner, Supply Solutions Group provides genuine LOCTITE products backed by responsive customer service, procurement support and Australia-wide delivery.

Product Type

• Product Type: Medium Strength Threadlocker
• Pack Size: 50ml
• Colour: Blue
• Strength: Medium
• Technology: Anaerobic
• Best For: General Purpose Metal Threaded Fasteners

Key Features

• Genuine LOCTITE® 243 Threadlocker
• Product Code: 243-50
• 50ml bottle
• Medium-strength formulation
• Blue colour for easy identification
• General-purpose threadlocking performance
• Helps prevent loosening from vibration and shock
• Seals threaded assemblies
• Oil-tolerant formulation
• Suitable for active and passive metals
• Helps protect threads against corrosion
• Cures in the absence of air between close-fitting metal surfaces
• Allows disassembly using standard hand tools
• Suitable for industrial maintenance and assembly
• Professional engineering-grade adhesive

Technical Specifications

Typical Applications

• Nuts and bolts
• Gearbox assemblies
• Pumps
• Motors
• Machinery
• Engine components
• Mounting bolts
• Bearing housings
• Hydraulic equipment
• Automotive repairs
• Industrial maintenance
• Mechanical assemblies

Suitable Industries

• Mining
• Manufacturing
• Automotive
• Engineering
• Construction
• Transport
• Utilities
• Agriculture
• Mechanical maintenance
• Heavy industry

Why Choose LOCTITE® 243 Threadlocker?

LOCTITE 243 is one of the most versatile threadlockers for general industrial maintenance. Its medium-strength bond provides reliable resistance to vibration while still allowing components to be dismantled for servicing.

The oil-tolerant formulation is particularly useful in maintenance environments, where fasteners may retain traces of oils or other industrial fluids. Once cured, LOCTITE 243 helps secure the assembly while sealing the threads against leakage and corrosion.

Why Buy from Supply Solutions Group?

Supply Solutions Group is an Indigenous-owned Australian supplier of industrial adhesives, lubricants, maintenance chemicals and workshop consumables, providing genuine LOCTITE products backed by procurement support and Australia-wide delivery.

Benefits of Partnering with Supply Solutions Group

• Australia-wide supply capability
• Indigenous-owned and operated business
• Genuine LOCTITE products
• Procurement support services
• Trade account options
• Bulk purchasing solutions
• Industrial maintenance supply capability
• Product sourcing assistance
• Responsive customer service
• Ongoing industrial supply arrangements

Frequently Asked Questions

What is LOCTITE 243 used for?
LOCTITE 243 is designed for locking and sealing threaded metal fasteners such as nuts, bolts and studs to prevent loosening caused by vibration and shock.

Is LOCTITE 243 permanent?
No. It is a medium-strength threadlocker, meaning assemblies can generally be dismantled using normal hand tools when maintenance is required.

Can LOCTITE 243 tolerate oily components?
Yes. LOCTITE 243 has good oil tolerance and can perform on components with minor contamination from common industrial oils. Proper surface preparation should still be carried out wherever practical.

What is the difference between LOCTITE 243 and high-strength threadlockers?
LOCTITE 243 provides medium-strength locking and is intended to remain serviceable. High-strength threadlockers are generally intended for assemblies where permanent or significantly more difficult disassembly is acceptable.

What size threads can LOCTITE 243 be used on?
LOCTITE 243 is designed for threaded fasteners up to approximately M36.

What temperature can it withstand?
Once properly cured, LOCTITE 243 has a typical service temperature range of approximately -55°C to +180°C.

Can Supply Solutions Group provide bulk quantities?
Yes. We can supply individual bottles, multiple units and ongoing procurement solutions for workshops, contractors, mining operations and industrial maintenance teams.