LOCTITE 290 Wicking Grade MIL-SPEC Medium-High Strength Green Threadlocker


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*some package sizes excluded

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

LOCTITE® 290™ Wicking Grade MIL-SPEC Medium-High Strength Green Threadlocker is a medium strength wicking threadlocker for pre-assembled bolts up to 1/2" (12 mm). Penetrates threads by capillary action. Secures set screws and other assemblies after settings are completed. Seals welds and porous metal parts. Mil Spec: Mil-S-46163A Type III, Grade R. NSF/ANSI 61 Certified. Applications include instrumentation screws, electrical connectors and set screws and also seals porosities in welds and 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