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LOCTITE® 263
Features and Benefits
Dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners.
LOCTITE® 263 is a red, high-strength, primerless threadlocker for permanently locking and sealing bolts, nuts and studs to prevent loosening due to vibration. It works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces without the use of primer. Suitable for use on most oil-coated, “as-received” fasteners without cleaning.
- Particularly suited for heavy duty applications such as studs into motor housings where high strength is required
- Prevents loosening and leakage from shock and vibration
- Designed for the permanent locking and sealing of threaded fasteners
- Provides robust curing performance
- Offers high temperature performance and oil tolerance
Documents and Downloads
Looking for a TDS or SDS in another language?
Technical Information
| 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 | 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) |
Frequently Asked Questions
What products can I use to prevent vibration loosening of parts? How do I prevent vibration loosening and leak paths?
What temperatures can LOCTITE® anaerobic threadlockers/thread sealants/gasketing materials withstand?
Are LOCTITE® anaerobic threadlockers/sealants/gasketing materials resistant to fluids such as gasoline, diesel, engine oil, water, glycol, acids, alkalis, hydraulic fluid, etc.?
Can LOCTITE® anaerobic threadlockers be used as thread sealants? Can LOCTITE anaerobic thread sealants be used as threadlockers?
LOCTITE® 263
Dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners.