LOCTITE 290


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*some package sizes excluded

Threadlocking adhesive - medium/ high strength. Ideal for locking preassembled fasteners.

LOCTITE® 290 is a liquid medium/high-strength threadlocker designed for the locking and sealing of threaded fasteners. Because of its low viscosity and capillary action, the product wicks between engaged threads and eliminates the need for disassembly prior to application. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. The product can also fill porosities in welds, castings and powdered metal parts.


Your benefits

  • Ideal for locking preassembled fasteners, e.g. instrumentation fasteners, electrical connectors and set screws
  • Works on metal only
  • Proven to be tolerant of minor contamination due to industrial oils, e.g. motor oils, corrosion prevention oils and cutting fluids
  • Requires heat for disassembly

Applications Pre-Assembled Wicking
Removable Medium Strength
Product Note

 Only products containing the NSF Mark are Certified.

Agency Approvals / Specifications MIL-S-46163A for existing designs, CFIA Listed, NSF P1, ASTM D-5363, NSF/ANSI 61
Color Green
Cure Type Anaerobic Cure
Fixture Time 20 min.
Full Cure Temperature (°C) 25
Full Cure Temperature (°F) 77
Full Cure Time 24 hr.
Key Characteristics General Purpose, Strength: High Strength, Corrosion Inhibiting, Viscosity: Low Viscosity, Rust Inhibiting, Strength: Medium Strength
Number of Components 1 Part
Physical Form Liquid
Specific Gravity (g/l @ 25°C) 1.08
Temperature Range (°C) -54 to 149
Temperature Range (°F) -65 to 300
Thread Size (Maximum) M M6
Torque Break on M10 Steel (in./lb.) 90
Torque Prevail on M10 Steel (in./lb.) 260
Viscosity Range (Brookfield mPa.s (cP)) 25 to 55
Viscosity Temperature (°C) 25
Viscosity Temperature (°F) 77