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.
- Low viscosity
- Designed for small threads
- Various pack sizes
- Low strength
Chemical Basis / Base |
Methacrylate |
Color |
Purple |
Fixture Time |
20.0 - 210.0 min. |
Substrates |
Metal: Brass, Metal: Steel, Metal: Steel - Stainless Steel |
Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 1, speed 20 rpm |
100.0 - 150.0 mPa·s (cP) |