High temperature, high strength, red-orange threadlocker. LOCTITE® 266 is a high temperature, high strength, red-orange anaerobic threadlocker. It is a 1-part, thixotropic liquid that is fast curing and which resists oil and mild surface contamination at temperatures up to +232°C. Locks fasteners up to 20mm in diameter. Locks fasteners up to 20 mm in diameter CFIA listed Resists oil and mild surface contamination at temperatures to +232°C