---
product_id: 284117369
title: "Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle"
brand: "loctite"
price: "$58.52"
currency: USD
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.us/products/284117369-loctite-492140-blue-threadlocker-242-36-mililiter-bottle
store_origin: US
region: United States of America
---

# Removable with hand tools Secures fasteners 6-20mm Sets in 5 minutes Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle

**Brand:** loctite
**Price:** $58.52
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock it down, loosen up later — the pro’s choice for lasting hold!

## Quick Answers

- **What is this?** Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle by loctite
- **How much does it cost?** $58.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/284117369-loctite-492140-blue-threadlocker-242-36-mililiter-bottle)

## 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

- • **Easy Disassembly:** Medium strength hold that’s strong yet removable with standard hand tools, perfect for regular maintenance.
- • **Fast-Acting Formula:** Sets quickly in just 5 minutes and fully cures within 24 hours, so your projects stay on track.
- • **Vibration-Proof Security:** Locks and seals to prevent loosening under stress and constant vibration—no more unexpected repairs.
- • **Versatile Metal Compatibility:** Works seamlessly on stainless steel, aluminum, and plated surfaces—trusted by OEMs and pros alike.
- • **Precision Fit for Small Fasteners:** Ideal for bolts and nuts from 1/4 to 3/4 inches, ensuring a perfect hold every time.

## Overview

Loctite 492140 Blue Threadlocker 242 is a medium-strength, high-temp adhesive designed for fasteners between 6mm and 20mm. Trusted by automotive professionals, it secures nuts and bolts against vibration and loosening, sets in 5 minutes, and fully cures in 24 hours. Compatible with various metals and removable with hand tools, it’s the go-to solution for reliable, service-friendly assembly.

## Description

The LOCTITE Automotive Threadlocker Blue 242 is a high-temp, medium-strength threadlocker trusted by professionals and OEM-specified. Designed by auto manufacturers and lab tested, it works on all metals, including stainless steel, aluminum, and plated surfaces, making it perfect for securing nuts and bolts in automotive applications. Ideal for valve cover bolts, water pump bolts, oil pan bolts, and more, it provides a reliable hold that resists vibration and loosening. This product is great for automotive maintenance and other settings where regular servicing is required. It sets in just 5 minutes and fully cures within 24 hours, delivering long-lasting performance. With a 36 ml bottle, LOCTITE Blue 242 is a dependable, easy-to-use solution for any automotive repair or maintenance project.

Review: Great stuff for automotive needs. Bottle is a good size if you use it often on older car/trucks that need some hold on the bolts.
Review: Works great as always

## Features

- DESIGN. Ideal for fasteners under 1/4 Inches to 3/4 inches (6 mm to 20 mm).
- RESULTS. Secure, one piece assembly that will not loosen under stress.
- SECURE. Locks and seals while preventing parts from loosening due to vibration.
- EASY TO USE. Removable with hand tools for disassembly.
- APPLICATION. Carburetors, relay locks, headlamps, throttle body assembly, choke assembly and fuel injection set screws and much more..Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000XSGJKY |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #33,750 in Automotive ( See Top 100 in Automotive ) #135 in Automotive Fillers, Adhesives & Sealants |
| Color | Blue |
| Customer Reviews | 4.8 4.8 out of 5 stars (162) |
| Date First Available | 8 December 2012 |
| Item model number | 492140 |
| Material Type(s) | Methacrylate Anaerobic |
| Product Dimensions | 15.88 x 5.72 x 2.79 cm; 63.5 g |

## Product Details

- **Brand:** LOCTITE
- **Item form:** Liquid
- **Material:** Methacrylate Anaerobic
- **Special features:** Removable Medium-Strength Bonding
- **Specific uses for product:** DIY Projects, Repairs, Maintenance, Workshops, Garages, Outdoor Settings

## Images

![Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle - Image 1](https://m.media-amazon.com/images/I/61anAQDDIoL.jpg)
![Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle - Image 2](https://m.media-amazon.com/images/I/814gNrorWEL.jpg)
![Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle - Image 3](https://m.media-amazon.com/images/I/81LP9fc4BzL.jpg)
![Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle - Image 4](https://m.media-amazon.com/images/I/71dqkWK6cDL.jpg)
![Loctite 492140 Blue Threadlocker, 242 36-Mililiter Bottle - Image 5](https://m.media-amazon.com/images/I/71Vi7okl0PL.jpg)

## Questions & Answers

**Q: What is the shelf life of this product?**
A: The shelf life of Loctite 242 is two years from date of manufacture. Please contact 1-800-LOCTITE for more information.

**Q: Can i use this on a motor scooter on the nut that holds the steering wheel on so I can get many miles as it would possibly vibrate allot on the road?**
A: Yes,  LOCTITE Threadlockers prevent fasteners from loosening due to vibration.  LOCTITE 242 or LOCTITE 243 are both our medium strength blue Threadlocker.  We also have LOCTITE 263 which is our high-strength red Threadlocker.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***E on 13 September 2025*

Great stuff for automotive needs. Bottle is a good size if you use it often on older car/trucks that need some hold on the bolts.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 30 August 2025*

Works great as always

### ⭐⭐⭐⭐⭐ Review
*by C***R on 29 January 2026*

It’s loctite. It holds screws. Good stuff

## Frequently Bought Together

- LOCTITE 242 Automotive Blue Threadlocker - Medium-Strength Thread Lock, Multi-Purpose Applications, Works on All Metals - 36 ml, 1 Pack
- Loctite 37479 271 Red Heavy Duty Threadlocker Bottle - 36 ml
- Loctite 37480 272 Red High Temperature Threadlocker Bottle - 36 ml

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-01*