Threadlockers
Red, high strength, primerless threadlocker stick
Designed for high-strength permanent locking and sealing of threaded fasteners. Removable with heat.
1330335
LOCTITE® 263, 250 ml Bottle
Size Please make your selection 250 ml
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
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- Description
- Technical specification
- Ratings & reviews
- Question & answer
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 without primer, including passive substrates such as stainless steel, aluminum and plated surfaces. Suitable for use on most oil-coated, 'as-received' fasteners without cleaning.
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Ideal for heavy duty applications, such as studs into motor housings, where high strength is required
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Prevents fastener loosening and leakage from shock and vibration
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Permanent locking and sealing of threaded fasteners - removable with heat
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Requires heat for disassembly
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High temperature performance (up to 182°C / 360°F) and oil tolerance
- Product category:
- Threadlockers
Technologies:
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Acrylates, anaerobic cure
- Agency approvals / certificates / specifications:
- NSF/ANSI-norm 61
- Application method:
- Dispense system,Manual
- Application temperature:
- -65.0 °F - 360.0 °F (-55.0 °C - 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)
How to use
LOCTITE® 263 is suitable for use on most “as-received” fasteners with light coatings of corrosion prevention oils without cleaning. However, for heavily oiled or contaminated fasteners, it is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying LOCTITE 263 threadlocker.
If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperature (below 5°C), use LOCTITE SF 7649 activator. Allow to dry.
Apply a few drops of liquid threadlocker to the thread engagement area. Assemble nut and tighten to proper torque.
Apply several drops of liquid threadlocker into lower third of blind hole, as well as a few drops onto male threads, and then install male threads. Tighten to proper torque.
Assemble and tighten to proper torque requirement. If several bolts are being assembled, torque them down to the correct value within the fixture time window.
Disassemble with standard hand tools.
If disassembly is not possible using normal hand tools, apply localized heat to approximately 500°F/260°C. Disassemble while hot with standard hand tools.
For manual dispensing, the use of LOCTITE® EQ Pro Pump (for 50ml and 250ml bottles) or LOCTITE®Peristaltic Hand Pumps (50 ml or 250 ml versions) is recommended to ensure a consistent application volume.
For the disassembly of corroded or seized parts, use LOCTITE® LB 8040 Freeze and Release.
FAQ
Prevent vibration loosening, prevent leaks, protect threaded components from corrosion and increase the reliability of mechanical fasteners by using a LOCTITE® anaerobic threadlocking adhesive.
The standard continuous operating temperature range for LOCTITE® anaerobic adhesives is -55˚C to +150˚C.Depending on the specific application requirements, high-performance grades are also available offering increased temperature resistance. Please consult with the Henkel technical team for availability and grade selection.
Yes, LOCTITE® anaerobic adhesives and sealants become highly resistant thermoset polymers once cured, making them suitable for a vast number of applications. Consult our online product resources or contact our technical teams for further information.
Yes, these products are all anaerobic adhesives that will function in a similar way. Variations in the adhesive characteristics (viscosity, gap-fill, strength, etc.) will make them better suited to certain applications. Consult the product technical data sheets and/or LOCTITE® representatives for further information.
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