Threadlockers
Red, high-strength threadlocker for large bolts
Designed for high-strength, permanent locking and sealing of large threads greater than 25mm (1").
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
Size Please make your selection 50 ml
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- Description
- Technical specification
LOCTITE® 277 is a red, high strength, high-viscosity threadlocking adhesive especially suitable for large bolts and studs greater than 25.4mm (1"). Disassembly with heat possible.
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High torque strength
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High viscosity
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Prevents unwanted movement, loosening, leaks and corrosion
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Can be disassembled by heating parts to 300°C (572°F)
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Meets Mil Spec: MIL-S-46163A Type I Grade L
Product category:
Threadlockers
Technologies:
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Acrylates, anaerobic cure
Application method:
Dispense gun,Dispense system,Manual
Application temperature:
-55.0 °C - 150.0 °C (-65.0 °F - 300.0 °F)
Applications:
Threadlocking for large bolts / studs
Breakaway torque, M10 Steel Nuts/Bolts:
32.0 N·m (280.0 in./lb.)
Color:
Red
Cure type:
Anaerobic cure
Fixture time:
45.0 min.
Key characteristics:
Fluorescent,Strength: high strength,Thixotropic
Physical form:
Liquid
Prevail torque, M10 Steel Nuts/Bolts:
32.0 N·m (280.0 in./lb.)
Recommended for use with:
Metal: brass,Metal: steel,Metal: steel - stainless steel
Viscosity, 20 RPM:
7000.0 mPa·s (cP)
How to use
It is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying 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.
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 (50ml or 250ml 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 -65°F to +300°F (-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, Henkel's anaerobic adhesives 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 Henkel representatives for further information.
All necessary H&S measures and PPE (personal protection equipment) requirements can be found on the product material safety data sheet, all of which are available via our website.
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