---
product_id: 1998117
title: "Threadlocker Blue"
brand: "loctite"
price: "€ 16.81"
currency: EUR
in_stock: true
reviews_count: 13
category: "Loctite"
url: https://www.desertcart.es/products/1998117-threadlocker-blue
store_origin: ES
region: Spain
---

# Locks 6-19mm fasteners Sets in 10 minutes Prevents rust & corrosion Threadlocker Blue

**Brand:** loctite
**Price:** € 16.81
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down, loosen up later — the smart fix for every fastener!

## Quick Answers

- **What is this?** Threadlocker Blue by loctite
- **How much does it cost?** € 16.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/1998117-threadlocker-blue)

## 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

- • **Versatile Fit:** Optimized for 6mm to 19mm nuts and bolts, ideal for everything from mowers to bicycles.
- • **Fast-Acting Formula:** Sets in just 10 minutes and fully cures in 24 hours, so you’re back to work without delay.
- • **Rust & Leak Defense:** Protects threads from rust, corrosion, and leaks—no more costly lock nuts or washers needed.
- • **Vibration-Proof Security:** Locks and seals metal fasteners to stop loosening from vibration—perfect for your power tools and motors.
- • **Medium-Strength, Removable:** Holds tight but allows easy disassembly with hand tools when maintenance calls.

## Overview

Loctite Threadlocker Blue 242 is a medium-strength, fast-setting liquid designed to lock and seal metal fasteners sized 6-19mm. It prevents loosening caused by vibration, protects against rust and corrosion, and allows easy removal with hand tools. Ideal for small motors, mowers, and power equipment, it sets in 10 minutes and fully cures in 24 hours, making it a reliable, time-saving solution for professionals and DIYers alike.

## Description

Product Description Loctite Threadlocker Blue 242 is designed to lock and seal threaded fasteners and prevent loosening from vibration. Ideal for 6-19mm fasteners, this unique formula is great for small motors, mowers, and power equipment. Loctite Threadlocker Blue 242 protects threads and prevents from leaks, rusting, and corrosion and eliminates the need to stock up on expensive lock nuts and washers. Fast and easy to use, this medium-strength threadlocker sets in just 10 minutes and fully cures in 24 hours. Loctite Threadlocker Blue 242 is particularly suited for applications on less active substrates such as stainless steel and plated surfaces, where disassembly is required for servicing. From the Manufacturer Loctite Threadlocker Blue 242 locks threaded metal fasteners against loosening from machine vibration. It prevents leaks and rusting of metal threads for 1/4- to 3/4-Inch (6 mm to 20 mm) nuts and bolts. Metal parts can be removed with hand tools for easy disassembly if necessary. Sets in 20 minutes and cures in 24 hours. Especially useful for small motors, mowers and many types of power equipment.

Review: Works as it should. Excellent product - What else can be said about blue loctite. Use sparingly. A little can go a long way. Easy to use. Great value. Holds screws in place as it should
Review: Useful for bike repairs and loose bolts - X when working on my bike, the Loctite Blue 242 helps secure bolts nicely. It stays in place but still comes off when I need to remove parts later. The medium strength is just right for most jobs around the house and in the garage. The 6 ml tube is small but lasts through multiple projects. It does what I need without any hassle or mess.

## Features

- Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment
- Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
- Removable: Can be removed with hand tools
- Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
- For 6-19mm Fasteners: Medium-strength formula for use on threads for 6mm to 19mm nuts and bolts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000I1RSNS |
| Best Sellers Rank | #38 in Automotive ( See Top 100 in Automotive ) #1 in Thread Lock Sealers |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | Blue |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.8 out of 5 stars 42,424 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340242005 |
| Included Components | Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Blue 242 |
| Item Weight | 5 Grams |
| Manufacturer | Henkel Corporation |
| Material | Dimethylacrylate ester |
| Material Type | Dimethylacrylate ester |
| Model | Henkel / osi -tanch-it- |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong |
| Part Number | 209728 |
| Special Feature | Strong |
| Specific Uses For Product | Threadlocker |
| Tensile Strength | 110 Pounds Per Inch |
| UPC | 079340242005 |
| Unit Count | 6 Milliliters |
| Viscosity Level | Medium |
| Volume | 6 Milliliters |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Loctite
- **Item Form:** Liquid
- **Material:** Dimethylacrylate ester
- **Special Feature:** Strong
- **Specific Uses For Product:** Threadlocker

## Images

![Threadlocker Blue - Image 1](https://m.media-amazon.com/images/I/710dYyD5mTL.jpg)
![Threadlocker Blue - Image 2](https://m.media-amazon.com/images/I/61FfldQOSYL.jpg)
![Threadlocker Blue - Image 3](https://m.media-amazon.com/images/I/717fQ0SnLJL.jpg)
![Threadlocker Blue - Image 4](https://m.media-amazon.com/images/I/81ar3yBjM-L.jpg)
![Threadlocker Blue - Image 5](https://m.media-amazon.com/images/I/81Xhp7xIHkL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Is there a solvent or dremel attachement that will remove this stuff from bolt threads?**
A: You don't need solvent or dremel.  It will keep any screw or bolt from loosening, but you can get the bolt/screw out with a screwdriver and just brush off the Loctite.   Very good stuff.

**Q: Do I apply this to my doorknob set screw before screwing it in or after? (ie, a drop on top?)**
A: Before. You apply this to the screw threads before screwing in. Make sure you only apply a very little bit. More is not better.

**Q: how do I open the sealed tube? do I just poke a hole at the top?**
A: I think it's best to use a thumbtack, safety pin, etc. to poke a hole into the flat tip. This will give you "droplet-sized control" in application.

**Q: can this be used in glasses?  The screws that hold the lenses in place?**
A: No, it is designed for larger screws.  Use Loctite 222 for small screws.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as it should. Excellent product
*by A***R on March 6, 2026*

What else can be said about blue loctite. Use sparingly. A little can go a long way. Easy to use. Great value. Holds screws in place as it should

### ⭐⭐⭐⭐⭐ Useful for bike repairs and loose bolts
*by R***Z on April 11, 2026*

X when working on my bike, the Loctite Blue 242 helps secure bolts nicely. It stays in place but still comes off when I need to remove parts later. The medium strength is just right for most jobs around the house and in the garage. The 6 ml tube is small but lasts through multiple projects. It does what I need without any hassle or mess.

### ⭐⭐⭐⭐⭐ Best stuff to keep your threaded parts together! Can be removed with some effort, not by accident!
*by E***S on February 27, 2026*

I have used this for more than 40 years. Always works. Easy to apply (More is not better). A slim stripe along the threads will do the best and will permit you to break the seal, with some effort. Whatever threads you "locK" will not unthread due to vibration or stress but can be unlocked, if needed. Especially effective on loose or worn threads. A little bit goes a long way. I usually apply it to the threads sparingly for best effect. If you want the threads to permanently NEVER come loose, use the Red. Have always had a tube of this around for the last 40 years. No need to overtorque (tighten) and risk stripping threads or breaking a bolt.

## Frequently Bought Together

- Loctite Threadlocker Blue 242 - Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion - 6 ml, 1 Pack
- Wheeler Manual Firearms Accurizing Torque Wrench with Inch/Pounds Measurement, Bits and Storage Case for Scope Mounting, Gunsmithing and Maintenance

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-05-23*