Loctite Threadlocker 262 Red High-Strength Threadlocker 250 ml — Permanent Metal Fastener Locking

Loctite 262 is a high-strength, red anaerobic threadlocker in a 250 ml bottle designed to permanently lock and seal metal fasteners.

Engineered for demanding metal assemblies, Loctite 262 cures without air between tightly fitting metal parts to prevent loosening, leakage and corrosion. With a 24-hour cure window and a medium viscosity formula, this threadlocker combines strong shear and tensile resistance with a wide operating temperature range, making it suitable for industrial maintenance, heavy machinery and safety-critical fastenings.

How long does Loctite 262 take to reach full strength?

The compound typically reaches handling strength within hours, with complete cure and maximum strength achieved around 24 hours under ideal conditions. Cure rate depends on part fit, metal type and temperature; metal activators or elevated temperatures can speed the process.

• Typical full cure: 24 hours at room temperature
• Faster cure on close-fitting metal parts and in presence of metal ions
• Elevated temperature accelerates curing
• Anaerobic formula cures in absence of air between metal surfaces

What materials and temperatures is this threadlocker compatible with?

This product is formulated specifically for metal fasteners and performs across a broad service temperature range, making it suitable for automotive, industrial and marine applications. It is not intended for plastic or non-metal substrates without prior compatibility testing.

• Primary compatibility: steel, stainless steel and other metals
• Operating temperature range: -65°F to +300°F
• Not recommended for most plastics unless tested
• Store the bottle in a dry area to preserve shelf life

How strong is the bond and can parts be disassembled later?

Loctite 262 delivers high locking strength with a shear strength around 1450 psi and tensile strength near 189 psi, offering permanent locking for critical fasteners. Disassembly typically requires heat, mechanical force or specialized removal tools — choose this grade when permanent or semi-permanent retention is intended.

• Shear strength: approximately 1450 psi
• Tensile strength: about 189 psi
• Designed for permanent to semi-permanent locking
• Removal usually needs localized heat or mechanical methods

How should I apply and store Loctite 262 for best results?

Apply a small bead of liquid to clean, dry threads and assemble parts immediately to ensure anaerobic curing between metal surfaces. Keep the bottle tightly closed and stored in a dry environment away from direct sunlight to maintain performance and shelf life.

• Apply to clean, degreased threads; avoid contamination
• Assemble parts promptly after application for best cure
• Store in a dry area; keep bottle sealed when not in use
• Package: 250 ml bottle; sold per bottle, 10 bottles per case

Who is this for: Loctite 262 is aimed at technicians, maintenance crews, fabricators and engineers who need a reliable, high-strength threadlocker for metal fasteners in demanding environments. Choose this product when you require a permanent or long-term lock for critical assemblies exposed to vibration, heat or corrosive conditions.