LOCTITE® 221 - 50 ml Bottle

Features and Benefits

This one-part, low strength, low-viscosity threadlocking adhesive is formulated for small thread sizes up to M12.
LOCTITE® 221 is a purple, low strength, 1-part low viscosity liquid threadlocker ideal for locking small diameter screws and long engagement length fasteners. It prevents small screws from loosening due to shock and vibration, while still allowing for easy disassembly at room temperature without shearing the screw. For use on all metal fasteners up to M12, including steel, brass and stainless steel.
  • Suitable for steel, stainless steel and brass
  • Designed for small thread sizes
  • Low strength
  • Low viscosity
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® 221, 50 ml Bottle 135331 en-FR
IDH: 135331
EAN: 5010266221304

Size Case: 50 ml Bottle

LOCTITE® 221, 10 ml Bottle 231473 en-FR
IDH: 231473
EAN: 4100630000305

Size Case: 10 ml Bottle

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Technical Information

Chemical basis / base Methacrylate
Color Purple
Fixture time 20.0 - 210.0 min.
Recommended for use with 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)