Copyright 2025 by Imprexis Engineering | JM0877808-K
 
 
Loctite 263

Loctite 263

LOC004
LOCTITE® 263 is a red, high-strength, permanent threadlocker designed to lock and seal threaded fasteners, preventing loosening from vibration. It works on all metals without primer, including passive substrates, and cures through oil-coated fasteners without cleaning. Removal requires heat.
  • Ideal for heavy duty applications, such as studs into motor housings, where high strength is required
  • Prevents fastener loosening and leakage from shock and vibration
  • Permanent locking and sealing of threaded fasteners - removable with heat
  • Requires heat for disassembly
  • High temperature performance (up to 182°C / 360°F) and oil tolerance

Product Description

Loctite 263

Agency approvals / certificates / specifications NSF/ANSI-norm 61
Application Method Dispense system, Manual
Application temperature -65.0 - 360.0 °F (-55.0 - 180.0 °C )
Applications Threadlocking
Breakaway torque, M10 Steel Nuts/Bolts 33.0 N·m (290.0 in./lb. )
Color Red
Cure Type Anaerobic cure
Fixture time, Steel 10.0 min.
Key characteristics Disassembly: disassembly with heat, Fluorescent, General purpose, Oil tolerant, Primerless, Strength: high strength
Physical form Liquid
Prevail torque, M10 Steel Nuts/Bolts 33.0 N·m (290.0 in./lb. )
Recommended for use with Metal, Metal: passive metal
Specific gravity, @ 25.0 °C 1.1
Viscosity, 20 RPM 500.0 mPa·s (cP)
Copyright 2025 by Imprexis Engineering | JM0877808-K
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