Low strength, low viscosity threadlocking adhesive. Formulated for small metal threads up to M12.
LOCTITE 221 is a methacrylate-based threadlocking adhesive designed for low strength applications on small threads up to a maximum size of M12. Typical fixture times are brass at 20 minutes, steel at 25 minutes and stainless steel at 210 minutes. Offering low viscosity and a breakaway torque of 8.5Nm, the product is designed for fasteners that require easy disassembly with standard hand tools.
Designed for small threads
Various pack sizes
Max thread size: M12
Service temperature range: -55 degrees to +150 degrees