---
product_id: 756820806
title: "REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue"
brand: "realth"
price: "€ 1.01"
currency: EUR
in_stock: false
reviews_count: 5
category: "Realth"
url: https://www.desertcart.pt/products/756820806-realth-threadlocker-m243-50ml-medium-strength-vacuum-sealers-blue
store_origin: PT
region: Portugal
---

# 20 min initial / 24 h full cure Withstands up to 180°C 3500 lb² shear strength REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue

**Brand:** realth
**Price:** € 1.01
**Availability:** ❌ Out of Stock

## Summary

> 🔒 Seal the deal, skip the shakeout!

## Quick Answers

- **What is this?** REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue by realth
- **How much does it cost?** € 1.01 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/756820806-realth-threadlocker-m243-50ml-medium-strength-vacuum-sealers-blue)

## Best For

- realth enthusiasts

## Why This Product

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

## Key Features

- • **Precision Gap Filler:** Seals gaps up to 0.25mm for a flawless, durable bond every time.
- • **Stable Formula, No Waste:** Innovative air-permeable bottle design keeps adhesive fresh and ready, avoiding premature curing.
- • **Lock It Down, Stress-Free:** Medium strength formula locks bolts tight against vibration and micro-movements.
- • **Heat-Resistant Performance:** Operates reliably in extreme temps from -54°C to 180°C—built for tough environments.
- • **Versatile Metal Compatibility:** Works seamlessly on aluminum, stainless steel, cold steel, and more—your all-metal solution.

## Overview

REALTH Threadlocker M243 is a 50ml medium-strength blue adhesive designed to lock and seal metal fasteners against loosening from vibration. Featuring a shear strength of 3500 lb² and curing fully within 24 hours, it withstands temperatures up to 180°C. Its unique air-permeable bottle keeps the adhesive stable, ensuring consistent performance on metals like aluminum and stainless steel. Ideal for automotive, home repair, and industrial applications where durable, heat-resistant fastening is critical.

## Description

Features: - Works on metals, such as aluminum, stainless steel, cold steel, etc. - The size of the bottle is larger than 50ml, there is 50% or more that is filled with air to keep the glue stable. - There is some air in the bottle to keep the glue stable. - Prevents parts from loosening due to vibration that can lock and seal cylindrical components. - Eliminates the wear phenomenon of micro-vibrations, withstands high loads and antioxidants. - Apply filler gaps up to 0.25 mm. - Maximum Service Temperature: -54~180℃ - Shear Strength: 3500 lb² 24 N/mm² - Solidification time (first solidification/complete solidification): 20m/24h. - Prevents loosening in vibrating assemblies. - It is recommended that sealants not be used in pure oxygen or in pure oxygen environments. Package includes: - 1 x 50ml screw lock

Review: Works well - Sticks permanently as required
Review: Good thread lock - If you can get past the gooey consistency this stuff will save you so much money. For the size, and strength of this thread locker it's comparable to the best on the market

## Features

- Reminder The bottle is more than 1/2 vacuum because the screw locker hardens in the absence of air, so filling the bottle completely would cause the glue to start hardening. The bottle is air permeable and allows air to pass through the wall. There is also a little air space above the product inside the bottle to maintain the stability of the threader. Therefore, a 50 ml package contains a 50 ml threader in a much larger bottle.
- Application: Apply to fill gaps up to 0.25mm with 10 minutes fixing time. Strength: medium and high viscosity. Solidification time (first solidification/full solidification): 20 m/24 h. Maximum service temperature: 180 °C. Shear Strength: 3500 lb² 24 N/mm² The viscosity for speed at 20 RPM is around 2155 mPa·s.
- Method of use: 1. Cleans all surfaces. 2. Shake well before use. 3. Apply enough product on the screws in the nut mating area. If parts have come into contact with water-based solvents or cutting fluids and a protective layer is left on the surface, rinse with hot water before sticking.
- What it can do:Prevents parts from loosening due to vibration that can lock and seal metal nuts and bolts. Easy to use and clean. It can remove the wear phenomenon of microvibrations, and withstand high loads and antioxidants. It is applied on the threads of the nut and screw and then joined together. The thread lock adhesive evenly between the nut and the screw and then hardens in the absence of air, locking the nut and screw together.
- Application Sealants are widely used in automobiles for valve covers, oil pans, pumps, engines and others to extend the service life; at home for bicycles, motorcycles, locks, lawn mower, hardware, etc. to ensure the bolts stay in place; in the home project repair shop, sealing bezel, freestyle drone, computer printer and more to improve product performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B098SGFDGL |
| Brand | Realth |
| Brand Name | Realth |
| Colour | Blue |
| Compatible Material | Metal |
| Customer Reviews | 4.6 out of 5 stars 226 Reviews |
| Item Dimensions | 16 x 3 x 6 Centimeters |
| Item Weight | 2.61 Ounces |
| Item dimensions L x W x H | 16 x 3 x 6 Centimeters |
| Manufacturer | REALTH |
| Manufacturer Part Number | M243 |
| Material | Metal |
| Material Type | Metal |
| Model | M243 |
| Style | M243 - Medium Resistance |
| Style Name | M243 - Medium Resistance |
| UPC | 734557160657 |
| Unit Count | 50.0 Milliliters |

## Product Details

- **Brand:** Realth
- **Item Weight:** 2.61 Ounces
- **Item dimensions L x W x H:** 16 x 3 x 6 Centimeters
- **Material:** Metal
- **Style:** M243 - Medium Resistance

## Images

![REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue - Image 1](https://m.media-amazon.com/images/I/71ZBRuMjzcL.jpg)
![REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue - Image 2](https://m.media-amazon.com/images/I/61wiHsCjYCL.jpg)
![REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue - Image 3](https://m.media-amazon.com/images/I/71RDIrC8M3L.jpg)
![REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue - Image 4](https://m.media-amazon.com/images/I/71uGSERlZWL.jpg)
![REALTH Threadlocker M243 50ml Medium Strength Vacuum Sealers - Blue - Image 5](https://m.media-amazon.com/images/I/81QwXX6CVEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by L***N on 31 March 2024*

Sticks permanently as required

### ⭐⭐⭐⭐⭐ Good thread lock
*by N***N on 10 December 2025*

If you can get past the gooey consistency this stuff will save you so much money. For the size, and strength of this thread locker it's comparable to the best on the market

### ⭐⭐⭐⭐⭐ Great value!
*by A***N on 4 July 2023*

I didn't realize how large a bottle this actually was until I received it. While it's possible that it's contents may go bad before I use it all, it did not cost anymore then much smaller quantities from other brands. I typically purchase a US made product when available, but my go-to threadlocker in it's comparable form was not US made like some of its other products. I won't pay more if a US vendor is simply buying an overseas product and marking it up; in that case I buy direct. It has a very nice nozzle that opens and seals to keep the product fresh. That's an important feature in a larger bottle like this. Additionally, this is actually closer to a gel than a runny liquid. Most vendors gel products are significantly more expensive, so that makes this an even better value.

## Frequently Bought Together

- Threadlocker Blue 243 - Removable Thread Locker, Medium Strength Thread Locking Sealants 50ml for Bolts, Nuts Lock Tight, Anaerobic Screw Glue to Prevent Loosening & Corrosion(M243)
- ESKONKE Retaining Compound Green 638 Sleeve Retainer High Strength Cylindrical Metal Components Assemblies Locking and Sealing Anaerobic Glue 1.69 Oz/50 ml
- ThreadLocker Green, Thread Lock High Strength Lock Tight for Nuts, Bolts, Fasteners and Metals, Anaerobic Curing Metal Glue to Prevent Loosening and Corrosion (H680-50ml)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-11*