Loctite 221 Threadlocker for small screws low strength purple 250ml

LOCTITE® 221 is a purple, low strength, 1-part low-viscosity liquid threadlocker ideal for locking small diameter screws and long engagement length fasteners. 
 

• Pack size: 250 ml bottle (Loctite no. 142444)
• Available as well in 10 ml bottle, 50 ml bottle

Application

• 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.

Characteristics

• Suitable for steel, stainless steel and brass
• Designed for small thread sizes
• Low strength
• Low viscosity

Technical Specifications

Chemical basis / base	Methacrylate
Color	Purple
Fixture time	20.0 - 210.0 min
Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 1, speed 20 rpm	100.0 - 150.0 mPa·s (cP)
Fluorescence	Positive under UV light
Strength	Low

---

Hazard Information (CLP)

Signal Word: Warning

Hazard Statements (H-Statements)

• H319: Causes serious eye irritation.
• H335: May cause respiratory irritation.
• H412: Harmful to aquatic life with long lasting effects.

Prevention (P-Statements)

• P261: Avoid breathing vapors.
• P273: Avoid release to the environment.

Response

• P337+P313: If eye irritation persists: Get medical advice/attention.

Additional Labeling (EUH-Statements)

• P101: If medical advice is needed, have product container or label at hand.
• P102: Keep out of reach of children.
• P501: Dispose of waste and residues in accordance with local regulations.