LOCTITE 221

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 25, 20 and 210 min on steel, brass and stainless steel respectively. Offering low viscosity and a breakaway torque of 8.5 Nm, the product is designed for fasteners that require easy disassembly with standard hand tools.


Your benefits

  • Low strength
  • Low viscosity
  • Designed for small threads
  • Various pack sizes

Additional Documents

Technical Information
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Industrial Product Selector
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