---
product_id: 254741923
title: "506166 All-Purpose Medium Strength Anaerobic Threadlocker Stick, Blue, 9-Gram"
brand: "loctite"
price: "16630 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.hu/products/254741923-506166-all-purpose-medium-strength-anaerobic-threadlocker-stick-blue-9
store_origin: HU
region: Hungary
---

# Medium strength lock Applies before assembly Removable with hand tools 506166 All-Purpose Medium Strength Anaerobic Threadlocker Stick, Blue, 9-Gram

**Brand:** loctite
**Price:** 16630 Ft
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock it down, lift it up—thread security that works as hard as you do!

## Quick Answers

- **What is this?** 506166 All-Purpose Medium Strength Anaerobic Threadlocker Stick, Blue, 9-Gram by loctite
- **How much does it cost?** 16630 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/254741923-506166-all-purpose-medium-strength-anaerobic-threadlocker-stick-blue-9)

## 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

- • **OEM-Approved Performance:** Factory-line quality from Henkel, ensuring your repairs meet professional standards.
- • **Pre-Assembly Application:** Apply now, assemble later—perfect for streamlined volume production and on-the-go fixes.
- • **Versatile Industrial Use:** Ideal for valve covers, water pumps, drive shafts, and more—trusted by automotive pros.
- • **Wax-Like Self-Feeding Stick:** Mess-free, precise application that stays put even in overhead or tricky spots.
- • **Reliable Medium Strength Lock:** Secure your bolts with confidence—strong enough to hold, yet removable when needed.

## Overview

Loctite 506166 is a medium strength anaerobic threadlocker in a convenient wax-like stick form, designed for secure, removable fastening. Ideal for automotive and industrial applications, it allows pre-assembly application and performs reliably even in overhead repairs. Trusted by OEMs and professionals, it fills thread gaps to prevent loosening under stress while enabling easy removal with hand tools.

## Description

Loctite medium strength anaerobic threadlocker blue stick that is offered in both 9 and 19 grams. This product offers the same locking strength and sealing capabilities as Loctite premier blue threadlocking liquid, Loctite threadlocker 243. This wax-like stick is conveniently packaged in a self-feeding stick applicator. It is well-suited for difficult repairs, as in overhead applications. It can be applied to a part even if assembly is to take place at a later time, making the stick ideal for volume assembly. Removable with hand tools. The typical product applications are valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs and much more. Invented by Henkel as a revolutionary method to positively lock and seal threaded fasteners, Loctite threadlocker adhesives are used in a wide range of applications from delicate fuel injection components to heavy-duty transmission and engine assemblies. Specified by automotive OEM's and approved for use on factory assembly lines, threadlockers work by filling the spaces between threads. The result is a secure, one-piece assembly that will not loosen under stress.

Review: When working above my head, this is my choice for thread lock, works as expected and does not leak all over.
Review: Un tiempo estuve batallando con los tornillos de mis navajas , con tan solo un poco de loctite, quedan exelente y no se aflojan .

## Features

- VERSATILE. Applied to a part even if assembly is to take place at a later time, making the stick ideal for volume assembly.
- RESULTS. Well-suited for difficult repairs, as in overhead applications.
- EASY TO USE. Removable with hand tools.
- PACKAGING. Wax-like stick is conveniently packaged in a self-feeding stick applicator.
- APPLICATION. Valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts and carburetor studs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0053ZNMDE |
| Best Sellers Rank | #31,713 in Automotive ( See Top 100 in Automotive ) #140 in Touchup Paint |
| Brand | LOCTITE |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,750) |
| Date First Available | 7 August 2012 |
| Exterior | Smooth |
| Item Weight | 27.2 g |
| Item model number | 37643 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 506166 |
| Model | Loctite |
| 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:** Pen
- **Material:** Aluminum,Stainless Steel
- **Special features:** Strong
- **Specific uses for product:** Repair

## Images

![506166 All-Purpose Medium Strength Anaerobic Threadlocker Stick, Blue, 9-Gram - Image 1](https://m.media-amazon.com/images/I/61kw7-y8OVL.jpg)

## Available Options

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

## 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 K***K on 9 December 2024*

When working above my head, this is my choice for thread lock, works as expected and does not leak all over.

### ⭐⭐⭐⭐⭐ Review
*by S***E on 10 August 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 2 December 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!

## 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 Hungary*
*Store origin: HU*
*Last updated: 2026-02-22*