1. Introduction
Loctite Threadlocker Red 271 is a high-strength, permanent adhesive designed to secure threaded fasteners. It prevents loosening due to vibration and protects threads from leaks, rust, and corrosion. This product is suitable for fasteners up to 1 inch (25mm) in diameter and is commonly used in automotive, machinery, and industrial applications.
2. Product Overview
The Loctite Threadlocker Red 271 offers several key features:
- Permanent Lock: Designed for permanent locking and sealing of threaded fasteners.
- High Strength: Provides a strong bond for fasteners up to 1 inch (25mm).
- Vibration Resistance: Prevents fasteners from loosening due to shock and vibration.
- Corrosion Protection: Protects threads from rust and corrosion.
- Fast Setting: Sets in approximately 10 minutes and fully cures within 24 hours.

This image displays the Loctite Threadlocker Red 271 product in its retail packaging, highlighting its permanent nature and high strength for large fasteners.
3. Application Instructions
Follow these steps for proper application of Loctite Threadlocker Red 271:
- Prepare Surfaces: Ensure all metal parts are clean and dry before assembly. Remove any oil, grease, or dirt.
- Shake Well: Shake the product tube thoroughly before use to ensure proper mixing of components.
- Apply Product: Apply a sufficient amount of Loctite Threadlocker Red 271 to the threaded area of the fastener. For through-holes, apply several drops onto the bolt at the nut engagement area. For blind holes, apply several drops down the internal threads to the bottom of the hole.
- Assemble Parts: Assemble the parts promptly after application.
- Curing Time: The product sets in approximately 10 minutes. Allow 24 hours for full cure to achieve maximum strength.

This image illustrates the four key steps for using the threadlocker: cleaning parts, shaking the tube, applying to threads, and noting the setting and curing times.
This image shows a hand applying the red threadlocker liquid directly onto the threads of a bolt, demonstrating the application process.
4. Applications and Uses
Loctite Threadlocker Red 271 is suitable for a wide range of applications requiring a permanent bond for threaded assemblies. Common uses include:
- Automotive: Internal engine components, auto frames, auto suspension, wheel studs, valve covers, water pumps, alternators.
- Maintenance: Heavy machinery, structural fasteners, heavy conveyors, material movers.
- Home: Structural bolts, handrails, play sets, lawn mowers.

This graphic categorizes the uses of the threadlocker into automotive, maintenance, and home applications, providing specific examples for each.

This image shows the threadlocker being applied to bolts on a water pump assembly, demonstrating its use in automotive maintenance.
5. Maintenance and Removal
Loctite Threadlocker Red 271 provides a permanent bond. Removal of cured product requires specific methods:
- Heat Application: To disassemble parts, localized heat must be applied to the nut or bolt to approximately 500°F (260°C).
- Disassembly: While hot, disassemble the parts using standard hand tools.

This image highlights that Loctite Red 271 is permanent, prevents loosening, leaks, and rusting, and is only removable with high heat and hand tools.
6. Troubleshooting
If the threadlocker does not cure or hold as expected, consider the following:
- Surface Cleanliness: Ensure surfaces are completely clean and free of contaminants like oil or grease.
- Proper Application: Verify that sufficient product was applied to the threads.
- Curing Time: Allow the full 24 hours for complete curing before subjecting the assembly to stress.
- Material Compatibility: Loctite Threadlocker Red 271 is designed for metal fasteners. Ensure compatibility with the materials being joined.
- Removal Difficulty: If removal is difficult even with heat, ensure the specified temperature of 500°F (260°C) was reached and maintained during disassembly attempts.
7. Specifications
| Feature | Detail |
|---|---|
| Product Name | Loctite Threadlocker Red 271 |
| Model Number | 13102 |
| Brand | Loctite |
| Item Form | Liquid |
| Material | Cyanoacrylates |
| Specific Uses | Threadlocker |
| Fastener Size | Up to 1 inch (25mm) |
| Set Time | 10 minutes |
| Full Cure Time | 24 hours |
| Temperature Range | -65°F to 300°F (-54°C to 149°C) |
| Removal Method | Heat to 500°F (260°C) and hand tools |
| Product Dimensions | 0.63 x 0.63 x 3.5 inches; 0.2 ounces |
| Manufacturer | Henkel |
8. Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Always refer to the Safety Data Sheet (SDS) for complete safety information and handling instructions. Use in a well-ventilated area. Avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water and seek medical advice.
Keep out of reach of children. Store in a cool, dry place.
9. Warranty and Support
For product support, technical assistance, or warranty information, please contact Loctite customer service or visit the official Loctite website. Specific warranty details may vary by region and product. Always refer to the product packaging or official Loctite resources for the most current information.
You can find more information on the Loctite Store.





