---
product_id: 742621349
title: "LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643"
brand: "loctite"
price: "€ 54.28"
currency: EUR
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.ie/products/742621349-loctite-screw-lock-stick-blue-medium-9-grams-blue-37643
store_origin: IE
region: Ireland
---

# Medium strength lock Fast 10-min cure Mess-free stick applicator LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643

**Brand:** loctite
**Price:** € 54.28
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down cleanly, fast, and confidently!

## Quick Answers

- **What is this?** LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 by loctite
- **How much does it cost?** € 54.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/742621349-loctite-screw-lock-stick-blue-medium-9-grams-blue-37643)

## 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

- • **Speedy Setup:** Achieves initial cure in just 10 minutes, full strength in 24 hours for rapid project turnaround.
- • **Secure Every Thread:** Medium strength formula locks screws tight yet allows easy removal when needed.
- • **Clean & Precise Application:** Wax-like stick design eliminates drips and mess, perfect for overhead and hard-to-reach spots.
- • **Trusted Automotive Essential:** Ideal for valve covers, water pumps, drive shafts, and more—engineered for professional-grade repairs.
- • **Versatile Metal Compatibility:** Bonds reliably to stainless steel, aluminum, and other metals—even with minor oil contamination.

## Overview

LOCTITE Screw Lock Stick Blue Medium 9g is a mess-free, medium strength anaerobic threadlocker in a convenient stick form. It securely bonds metal fasteners including stainless steel and aluminum, resists minor oil contamination, and cures quickly within 10 minutes. Designed for automotive and maintenance use, it excels in overhead and difficult applications, providing reliable screw locking with easy removability.

## Description

LOCTITE Automotive Threadlocker Wax Glue Stick Blue 248 is a medium strength all-purpose adhesive designed to securely lock the screws into all metals. This 9g glue stick bonds effectively to a variety of metal substrates including passive materials such as stainless steel and aluminum, and resists minor oil contamination caused by motor oils and cutting fluids. Splash-proof and leak-proof formula maintains integrity under high temperature conditions making it ideal for difficult overhead applications. The adhesive can be easily removed and is suitable for automotive and maintenance operations such as valve cover bolts, water pump bolts and caliper brackets. Fast cure time in just 10 minutes and full strength within 24 hours makes quick volume assembly and early application a breeze. Versatile, compatible with nuts and bolts from 6mm to 19mm (1/4") to 3/4 in. ), Widely used for a variety of zippers

Review: Un tiempo estuve batallando con los tornillos de mis navajas , con tan solo un poco de loctite, quedan exelente y no se aflojan .
Review: This Loctite Threadlocker Stick is a game-changer when it comes to securing bolts and screws in place. It's so easy to use - just twist it up like a glue stick and apply directly to the threads. No more messy liquid dripping everywhere! The medium strength formula holds everything tight without making it impossible to remove later if needed. One thing to note is that the stick format can make it a bit tricky to reach tight spaces or apply evenly on smaller screws. However, the convenience and mess-free application definitely outweigh this minor inconvenience. Overall, if you're tired of dealing with runny liquids and want a cleaner threadlocking experience, this stick is worth a try!

## Features

- This medium strength anaerobic thread locker provides the same locking strength and sealing capabilities as traditional blue thread lock fluids
- Wax-like sticks are packaged in a self-feeding stick applicator
- Ideal for difficult repairs like overhead applications
- Ideal for valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0053ZNMDE |
| Amazon Bestseller | #1,372,113 in Automotive ( See Top 100 in Automotive ) #4,414 in Body Repair Tools #10,682 in Oils & Fluids |
| Brand | Loctite |
| Color | blue |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,425) |
| Date First Available | August 7, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions L x W x H | 8.9 x 1.9 x 1.9 cm |
| Item Weight | 27.2 g |
| Item model number | 37643 |
| Manufacturer | Loctite |
| Model | 37643 |
| OEM Part Number | 37643 |
| Product Dimensions | 8.89 x 1.91 x 1.91 cm; 27.22 g |
| Special Features | Strong |
| Viscosity | [AI] Medium |

## Product Details

- **Brand:** Loctite
- **Item Form:** Stick
- **Material:** Aluminum, Stainless Steel
- **Special Feature:** Strong
- **Specific Uses For Product:** Repair

## Images

![LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 - Image 1](https://m.media-amazon.com/images/I/61kw7-y8OVL.jpg)
![LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 - Image 2](https://m.media-amazon.com/images/I/91SOM8WCSoL.jpg)
![LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 - Image 3](https://m.media-amazon.com/images/I/81KDFGm4lHL.jpg)
![LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 - Image 4](https://m.media-amazon.com/images/I/71dqkWK6cDL.jpg)
![LOCTITE Screw Lock Stick Blue Medium 9 Grams Blue 37643 - Image 5](https://m.media-amazon.com/images/I/71Vi7okl0PL.jpg)

## Questions & Answers

**Q: Does the stick ever dry out? What is the longest you have had it open and it still works as expected for you?**
A: Loctite Rep said the "stick" shelf life from date of manufacture is 4 years.  Rep said Manufacture date is 2nd and 3rd series of numbers/ letters in the batch number. 
Example Batch Number example L3 7 B AC569. 
Number 7 will indicate last number of the year No clarification was given if 2017 would be 7 or 17.  And and letter B will indicate month, B = February.

**Q: INeed to remove the bolt, can you do it with tools?  Liquid says yes, reviewers say stick is  permanent.  Can't be permanent for my purpose .**
A: loctite says:  Threadlocker Blue 242® is great for Securing nuts and bolts from accidental loosening. Removes with hand tools.I say: It depends. Size of the locking area, strength and condition of the fastener. Now on a typical 5/16'' nut and bolt is a very small locking area so Blue is totally removeable as long as it's clean with no rust or burrs. Got dirt, rust, wire brush em unless their too far gone. Chase the threads on burrs. If you don't and it's a cheap grade fastener... It's gonna break and may ruin your day. Remember, this stuff turns into a crystalline structure under pressure. Sticks to everything including dirt and rust. So the impregnated rust, dirt and burrs are bigger now which causes binding upon removal. The LOCTITE 290 Wicking Grade Green is kool stuff. Apply after assembly and doesn't take much. Almost as strong as Blue, easy removal qualities and costs more. So don't spill it. Threadlocker Red 271 is for grade 8 fasteners or better. Hope this helped.

**Q: Has anyone used this with macbook screws? i'm hoping it provides similar holding power to oem screws, mine have been wiggling out a lot over time.**
A: Yes.  I use this on all of my computer screws, including an older MacBook.  I'm not aware of anything special about MacBook screws, or oem screws, that would make them less suitable.  This is a mechanical bond, so the more threads that engage, and the finer the gap of the engagement, the better it works.

**Q: Is there a max temperature for storage? Basically will it melt in my Florida garage?**
A: Optimal storage is 8 °C to 21 °C. Storage below 8 °C or greater than 28 °C can adversely affect product properties. Here is the TDS: http://tds.henkel.com/tds5/Studio/ShowPDF?pid=248&format=MTR&subformat=REAC&language=EN&plant=WERCS

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***E on August 10, 2024*

Un tiempo estuve batallando con los tornillos de mis navajas , con tan solo un poco de loctite, quedan exelente y no se aflojan .

### ⭐⭐⭐⭐⭐ Review
*by M***A on December 2, 2025*

This Loctite Threadlocker Stick is a game-changer when it comes to securing bolts and screws in place. It's so easy to use - just twist it up like a glue stick and apply directly to the threads. No more messy liquid dripping everywhere! The medium strength formula holds everything tight without making it impossible to remove later if needed. One thing to note is that the stick format can make it a bit tricky to reach tight spaces or apply evenly on smaller screws. However, the convenience and mess-free application definitely outweigh this minor inconvenience. Overall, if you're tired of dealing with runny liquids and want a cleaner threadlocking experience, this stick is worth a try!

### ⭐⭐⭐⭐⭐ Review
*by L***F on November 17, 2025*

Bon produit facile à appliquer et fonction très bien

## Frequently Bought Together

- Loctite 37643 Blue Medium Strength Threadlocker Stick - 9 g
- Loctite 37701 Red High Strength Threadlocker Stick - 9 g
- Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 Ounces, 50 mL, 3/4" Thread

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-22*