---
product_id: 254870418
title: "Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 37421-487232)"
brand: "loctite"
price: "€ 36.70"
currency: EUR
in_stock: false
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.gr/products/254870418-loctite-271-threadlocker-for-automotive-high-strength-high-temp-fluorescent
store_origin: GR
region: Greece
---

# Heat-removable for serviceability High-strength hold up to 3,000 PSI Fast curing in 10 minutes Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 37421-487232)

**Brand:** loctite
**Price:** € 36.70
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Lock it down, heat it up, never back off!

## Quick Answers

- **What is this?** Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 37421-487232) by loctite
- **How much does it cost?** € 36.70 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/254870418-loctite-271-threadlocker-for-automotive-high-strength-high-temp-fluorescent)

## Best For

- loctite enthusiasts

## Why This Product

- Trusted loctite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat removable:** Secure yet service-friendly—disassemble with localized heating
- • **Fluorescent under UV:** Easy inspection with UV light for quality assurance
- • **Military-grade adhesion:** Meets MIL-S-46163A for unmatched reliability under extreme conditions
- • **Shock & vibration resistant:** Locks fasteners tight even under heavy automotive stress
- • **Universal metal compatibility:** Works flawlessly on all metals including stainless steel & aluminum

## Overview

Loctite 271 Threadlocker is a high-strength, low-viscosity adhesive designed for permanent locking and sealing of metal fasteners up to 1" (25mm). It cures anaerobically in 10 minutes and withstands temperatures from -65°F to 360°F, delivering 3,000 PSI holding power. Trusted by military standards (MIL-S-46163A) and tested by ASTM, it resists shock, vibration, and chemical exposure while allowing heat removal for maintenance.

## Description

" Convenient, Portable & Effective LOCTITE® 271™ is a red, low viscosity, methacrylate-based threadlocking adhesive with high strength. With steel fixture time of 10 min, brass 5 min and stainless steel 15 min. Can tolerate slight contaminations of industrial oils. Suitable for all metal fasteners. Breakaway torque on M10 bolts of 26 Nm. Fluoresces under UV light. Perfect for temperatures between -65°F - 360°F (-54°C - 182°C). LOCTITE® 271™ is designed for the permanent locking and sealing of threaded fasteners. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. LOCTITE® 271™ adds 3,000 PSI holding power on slip and press fit assemblies. Typical applications include the locking and sealing of large bolts and studs (up to M25 ). MILITARY GRADE ADHESION This high-strength thread locker is tested to the lot requirements of Military Specification Mil-S-46163A. MIL-SPEC (Military standard or Military-SPEC) adhesive are products that meet or exceed the US defense standard, a measure of quality set to standardize the expectations of all products supplied to the US Military. Each lot is also tested by the ASTM (American Society for Testing and Materials), a body of skilled personnel that specializes in testing materials and generating standards of quality.

Review: Filetage adapteur pour moteur
Review: Replacing axle nuts on my ‘06 Corvette. Locked them on the shaft easily. As recommended, waited 24 hours for the thread lock to set properly.

## Features

- RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces) with improved oil tolerance.
- REMOVABLE WITH HEAT. Designed for securing parts that must withstand heavy shock, vibration, or extreme chemical or environmental conditions. Localized heating and hand tools are required to separate parts.
- TYPICAL APPLICATIONS Frame brackets, suspension fasteners, shock absorber mounts, wheel studs.
- CONVENIENT CURING. Sets in just 10 minutes & is fully cured in 24 hours.
- LOCTITE 271 is ideal for as received fasteners up to 1" (25 mm) in size.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0028OJAIY |
| Best Sellers Rank | #67,041 in Automotive ( See Top 100 in Automotive ) #241 in Automotive Fillers, Adhesives & Sealants |
| Brand | LOCTITE |
| Customer Reviews | 4.7 4.7 out of 5 stars (614) |
| Date First Available | 16 August 2012 |
| Exterior | Smooth |
| Item Weight | 4.54 g |
| Item model number | 37421 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 37421 |
| Model | Loctite 487232 Threadlocker 271 High Strength Tube, Red, 6-ml |
| OEM Part Number | 37421 |
| Product Dimensions | 16.51 x 9.69 x 2.03 cm; 4.54 g |
| Special Features | Strong |
| Viscosity | Low viscosity |

## Product Details

- **Brand:** LOCTITE
- **Item form:** Tube
- **Material:** Metal
- **Special features:** Strong
- **Specific uses for product:** Automotive, Industrial, DIY, Furniture, Heavy-Duty

## Images

![Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 37421-487232) - Image 1](https://m.media-amazon.com/images/I/71aDC2eOevS.jpg)

## Questions & Answers

**Q: Would this be 2 heavy for gun sight installation or just what i need?**
A: It might be to much for 271. It was designed for larger treads 3/8 + hold, and might make it impossible to remove at a latter time because of inability to apply enough heat and torque to remove from small treads like a scope mount. use Blue which is for small threads

**Q: Does this product require a primer?  The fourth picture on Amazon suggests it does but the instructions do not mention a primer.  Stainless + aluminum**
A: I didn't need to. I used it on steel threads. Didn't even clean them. Applied this product and assembled. Hardened in minutes. I waiyed 24hrs  before use just in case. Excellent product. I've used in the automobile repair industry for 30yrs.

**Q: Would this be appropriate for the locking nut on a sink faucet, that is always coming loose and making the faucet wobble?**
A: Oh god no! This is for applications of extreme vibration and areas that's could be extremely dangerous if a bolt or nut came loose. All you should need for you faucet is the blue loctite. After using the red, you would need some serious heat and a breaker bar to free that nut if you needed to replace that faucet in the future.

**Q: if it is opened/used, how long will it stay fresh/usable?**
A: Unopened/opened shelf life of Loctite 271 is two years from date of manufacture. Since exposure to oxygen is what keeps the liquid product stable, and it is packaged in a "breathable" plastic bottle, there is no change in shelf life once the product has been opened.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***É on 7 August 2023*

Filetage adapteur pour moteur

### ⭐⭐⭐⭐⭐ Review
*by N***S on 5 August 2022*

Replacing axle nuts on my ‘06 Corvette. Locked them on the shaft easily. As recommended, waited 24 hours for the thread lock to set properly.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 3 June 2025*

Red Loctite is great for big, critical hardware applications. I usually default to blue Loctite for just about all the applications I find, but this time I was replacing wheel bearings and disc brake mounts on a 1 ton pickup, so that included both big hardware AND critical applications - really don't want those working loose over the next 50,000 miles!!! That would be a heck of a surprise. As usual, very easy to use in the tube - just apply a bit to the leading edge of the threads, run the bolt in, and torque it down. Of course, removing hardware with red Loctite is no joke but there's always heat if needed! That also means that the hold is fantastic and again, shouldn't work loose until it's intentionally persuaded with force and/or heat. So ease of removal is not easy at all - but that's the point! Applying out of the tube is very easy: just open the cap and cut off a tiny edge of the nozzle, then apply just a little bit (I've learned not to apply too much - it's just unneeded). Definitely not messy either, which is fantastic. When you apply it to threads, it really clings to the threads, allowing you time to get it in place and run down to torque. But it's also just runny enough to really work its way down into the threads. So overall, if you need to make sure a big piece of critical hardware doesn't move until you absolutely need it to, there's no better option that this red Loctite!

## Frequently Bought Together

- Loctite 37421 271 Red Heavy Duty Threadlocker
- Loctite Threadlocker Blue 242 Blue, 0.2 fl oz, 1, Tube
- LOCTITE 242 Threadlocker for Automotive: High-Temp, Medium-Strength, Anaerobic | Blue, 6mL Tube (PN: 37418 - 487229)

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-29*