---
product_id: 281625399
title: "Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 36mL Bottle (PN: 37479-492142)"
brand: "loctite"
price: "R$598"
currency: BRL
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.com.br/products/281625399-loctite-271-threadlocker-for-automotive-high-strength-high-temp-fluorescent
store_origin: BR
region: Brazil
---

# Withstands up to 360°F 3000 PSI holding power 10 min fixture time Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 36mL Bottle (PN: 37479-492142)

**Brand:** loctite
**Price:** R$598
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down like a pro — don’t let your bolts bail on you!

## Quick Answers

- **What is this?** Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 36mL Bottle (PN: 37479-492142) by loctite
- **How much does it cost?** R$598 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/281625399-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

- • **Rapid Fixture Time:** Sets in just 10 minutes so you can get back to work faster.
- • **Military-Grade Strength:** Locks bolts with 3000 PSI shear strength for unshakable security.
- • **Heat-Resistant Performance:** Endures extreme temps from -65°F to 360°F without losing grip.
- • **Universal Metal Compatibility:** Works flawlessly on all metals including stainless steel & aluminum.
- • **Fluorescent for Easy Inspection:** Glows under UV light to ensure every fastener is locked tight.

## Overview

Loctite 271 Threadlocker is a high-strength, red anaerobic adhesive designed for permanent locking and sealing of metal fasteners up to 1" (25mm). It cures in 10 minutes and fully in 24 hours, tolerates slight oil contamination, withstands temperatures from -65°F to 360°F, and delivers 3000 PSI holding power. Trusted to military standards, it resists shock, vibration, and harsh environments, making it ideal for automotive and industrial applications.

## 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: Buena compra - Rinde mucho y es un producto y marca que cumple lo que promete
Review: #271. The strongest Loctite I’ve seen. - Awesome Loctite, as advertised, this is the strongest hold I’ve seen. Don’t put it in something unless you are 100% positive you want it to stay together. This takes extreme heat to break the bond from #271.

## 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 | B004DWUN5S |
| Best Sellers Rank | #39,605 in Automotive ( See Top 100 in Automotive ) #167 in Automotive Fillers, Adhesives & Sealants |
| Brand | LOCTITE |
| Brand Name | LOCTITE |
| Color | Red |
| Colour | Red |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 425 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340374799 |
| Included Components | (1) Threadlocker 271 High Strength Bottle, Red, 36-ml |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 45 g |
| Item form | Liquid |
| Manufacturer | Loctite |
| Material | Metal |
| Material Type | Metal |
| Model | 37479 |
| Number of Pieces | 1 |
| Other Special Features of the Product | High-Strength, Permanent Locking |
| Part Number | 492142 |
| Special features | High-Strength, Permanent Locking |
| Specific Uses For Product | Repair |
| Specific uses for product | Repair |
| Tensile Strength | 3000 Pounds Per Square Inch |
| UPC | 079340374799 |
| Unit Count | 36 Milliliters |
| Viscosity Level | Low |
| Volume | 36 Milliliters |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** LOCTITE
- **Item form:** Liquid
- **Material:** Metal
- **Special features:** High-Strength, Permanent Locking
- **Specific uses for product:** Repair

## Images

![Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 36mL Bottle (PN: 37479-492142) - Image 1](https://m.media-amazon.com/images/I/61SRjbF5QYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buena compra
*by J***. on 20 June 2022*

Rinde mucho y es un producto y marca que cumple lo que promete

### ⭐⭐⭐⭐⭐ #271. The strongest Loctite I’ve seen.
*by S***. on 17 August 2026*

Awesome Loctite, as advertised, this is the strongest hold I’ve seen. Don’t put it in something unless you are 100% positive you want it to stay together. This takes extreme heat to break the bond from #271.

### ⭐⭐⭐⭐⭐ Screws won’t budge
*by G***T on 20 January 2026*

Used this for a rifle stock that was held on by 2 screws that would always come loose when shooting. This stuff kept it locked down with no issues. Highly recommend

## Frequently Bought Together

- Loctite 271 Automotive Threadlocker Red - High Strength Thread Lock, Fluorescent, Heavy-Duty, Works on All Metals - 36 ml, 1 Pack
- Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 Ounces, 50 mL, 3/4" Thread
- LOCTITE 242 Threadlocker for Automotive: High-Temp, Medium-Strength, Anaerobic, All Purpose TYPICAL APPLICATIONS, Works on all Metals| Blue, 36 ml Bottle (PN: 37477 - 492140)

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**Shop now:** [https://www.desertcart.com.br/products/281625399-loctite-271-threadlocker-for-automotive-high-strength-high-temp-fluorescent](https://www.desertcart.com.br/products/281625399-loctite-271-threadlocker-for-automotive-high-strength-high-temp-fluorescent)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-09-11*