Loctite 262 High Strength Threadlocker 50 ml – Permanent Metal Locking, Vibration & Corrosion Resistant

Loctite 262 High Strength Threadlocker is a permanent anaerobic adhesive that locks and seals metal fasteners to resist loosening from vibration and to protect against corrosion.

Engineered for heavy-duty industrial and maintenance applications, Loctite 262 bonds threaded assemblies made from a wide range of metals, including passive substrates such as stainless steel and aluminium. Its formulation tolerates light surface contamination from oils and cutting fluids, giving reliable performance where complete cleaning is impractical. Supplied in a 50 ml bottle, this high-strength liquid threadlocker reduces the need for mechanical locking methods and helps maintain assembly integrity in demanding environments.

How does Loctite 262 keep bolts and nuts from coming loose?

Loctite 262 cures anaerobically—hardening in the absence of air and in the presence of metal—to fill gaps between mating threads and create a durable polymeric lock. Once set, the bond resists torque and shear forces that would otherwise allow fasteners to vibrate loose.

• High-strength permanent locking for critical fasteners.
• Forms a rigid polymer between threads to prevent rotation.
• Suitable for use on studs, bolts and nuts in machinery and assemblies.

Will it work on stainless steel, aluminium or plated parts?

Yes — Loctite 262 is formulated to bond across a broad range of metals, including passive and plated surfaces that are often challenging for adhesives. It is effective when used on stainless steel, aluminium and various plated fasteners after following recommended application practices.

• Compatible with passive metals and plated surfaces.
• Adapts to mixed-metal assemblies without loss of performance.
• Works on assemblies where mechanical locks are impractical.

Can it tolerate oily or contaminated surfaces?

Loctite 262 shows tolerance to minor contamination such as light engine oils, corrosion-prevention oils and cutting fluids, making it practical for field repairs and workshop situations. For the most reliable bond, removing heavy contamination and following surface preparation guidelines is recommended.

• Tolerant of light industrial oils and machining fluids.
• Best results after degreasing or wiping off heavy residues.
• Designed for realistic workshop and maintenance conditions.

What chemical and environmental resistance does it provide?

Once cured, the threadlocker offers strong resistance to rust and corrosion in aggressive chemical environments, protecting threaded joints from degradation. It withstands common industrial fluids and helps extend service life under corrosive exposure.

• Excellent resistance to rusting and corrosion.
• Maintains bond integrity in chemically harsh conditions.
• Suitable for long-term assemblies exposed to industrial environments.

Who is this for? Loctite 262 50 ml is aimed at professional mechanics, industrial maintenance crews, fabricators and serious DIYers who need a dependable, high-strength threadlocker for permanent or semi-permanent fastener assemblies. It’s ideal for engines, gearboxes, heavy machinery, structural assemblies and anywhere vibration or corrosive conditions risk loosening threaded connections.