Threadlockers
Purple, low-strength liquid threadlocker for small thread sizes
This 1-part, low strength, low-viscosity threadlocking adhesive is formulated for small thread sizes up to M12.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
- Description
- Technical specification
- Rating & reviews
- Question & answer
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.
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Suitable for steel, stainless steel and brass
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Designed for small thread sizes
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Low strength
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Low viscosity
- Product category:
- Threadlockers
- Technologies:
- Acrylates, anaerobic cure
- Chemical basis / base:
- Methacrylate
- Color:
- Purple
- Fixture time:
- 20.0 min. - 210.0 min.
- Recommended for use with:
- Metal: brass,Metal: steel,Metal: steel - stainless steel
- Viscosity, Brookfield - RVT, @ 25.0 °C:
- 100.0 mPa·s (cP) - 150.0 mPa·s (cP)
