Loctite Threadlocker Blue 242 - Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion - 6 ml, 1 Pack 1 Pack Blue (Removable)

by Loctite

4.8(49,987)
Gallery image 1 of 9

Overall Score

0Overall

Value Score

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Should you buy it?

Loctite Threadlocker Blue 242 stands out as a highly effective solution for securing fasteners across a variety of applications. Its ability to prevent loosening and corrosion, combined with ease of use and a favorable price point, makes it a valuable tool for both professionals and hobbyists. While the strength of the product may not meet the expectations of those seeking a heavy-duty solution, its medium strength is well-suited for most common tasks.

We recommend Loctite Threadlocker Blue 242 for those seeking a reliable, user-friendly product to secure fasteners. Its versatility and positive reception from a vast user base underscore its utility in real-world scenarios. However, users requiring a stronger hold for heavy-duty applications may need to explore other options.

Pros & Cons

Pros

  • Effective at securing fasteners (85% of reviews give 5 stars)
  • Highly praised for quality (96% positive sentiment)
  • Versatile application across different tasks (94% positive sentiment)
  • Good value for money (91% positive sentiment)
  • Easy to apply (92% positive sentiment)

Cons

  • Mixed feedback on strength (50% mixed sentiment)
  • Reported as runny by some users (10% negative sentiment)

Where to Buy

Loctite Threadlocker Blue 242: Secure Fastening Solution

In the realm of mechanical maintenance and assembly, securing fasteners is paramount to ensuring the longevity and reliability of equipment. Loctite Threadlocker Blue 242 emerges as a critical tool in this domain, boasting a 4.8-star rating from nearly 50,000 reviews. Our analysis of customer sentiment data reveals a product that excels in application versatility, ease of use, and overall effectiveness in preventing loosening and corrosion. This review delves into the specifics of its performance, from the nuanced feedback on strength to the overwhelmingly positive reception on its practical utility.

Through a meticulous review of customer data, we have identified the strengths and potential drawbacks of Loctite Threadlocker Blue 242. From hobbyists to professionals, users across various sectors have provided insights that help us understand how this product performs in real-world scenarios. Our findings aim to assist you in making an informed decision on whether this threadlocker aligns with your specific needs.

Pros

  • Effective at securing fasteners (85% of reviews give 5 stars)
  • Highly praised for quality (96% positive sentiment)
  • Versatile application across different tasks (94% positive sentiment)
  • Good value for money (91% positive sentiment)
  • Easy to apply (92% positive sentiment)

Cons

  • Mixed feedback on strength (50% mixed sentiment)
  • Reported as runny by some users (10% negative sentiment)

Performance & Reliability

Loctite Threadlocker Blue 242 has garnered praise for its ability to secure fasteners effectively, with 85% of users awarding it a perfect 5-star rating. Customers frequently highlight its reliability in preventing loosening due to vibrations, a critical feature for applications in small motors, mowers, and power equipment. However, the strength of the threadlocker receives mixed reviews, with 50% of sentiment data indicating a neutral stance. Some users appreciate its medium strength as it allows for easy removal, while others find it less robust than expected for certain heavy-duty applications.

Design & Build Quality

The physical characteristics of Loctite Threadlocker Blue 242 are generally well-received, with 96% of customers expressing positive sentiment towards its quality. The product's blue color aids in identification and application, and its medium-strength formula is designed to suit a wide range of fastener sizes from 6mm to 19mm. Nonetheless, a notable 10% of users report the product as being too runny, which can affect precision during application.

Value for Money

At a 91% positive sentiment on value for money, Loctite Threadlocker Blue 242 is seen as a cost-effective solution for securing fasteners. Customers appreciate that it eliminates the need for additional lock nuts and washers, which can be more expensive and less convenient. The 6 ml pack size is sufficient for most users, providing a good balance between quantity and price.

User Experience

The user experience with Loctite Threadlocker Blue 242 is overwhelmingly positive, with 92% of reviews praising its ease of application. Users report that the product sets in just 10 minutes and fully cures within 24 hours, making it convenient for both professional and DIY projects. Specific use cases include securing screws in firearms, bolts in power equipment, and panel jacks in audio racks, demonstrating its versatility across different applications.

Verdict

Loctite Threadlocker Blue 242 stands out as a highly effective solution for securing fasteners across a variety of applications. Its ability to prevent loosening and corrosion, combined with ease of use and a favorable price point, makes it a valuable tool for both professionals and hobbyists. While the strength of the product may not meet the expectations of those seeking a heavy-duty solution, its medium strength is well-suited for most common tasks.

We recommend Loctite Threadlocker Blue 242 for those seeking a reliable, user-friendly product to secure fasteners. Its versatility and positive reception from a vast user base underscore its utility in real-world scenarios. However, users requiring a stronger hold for heavy-duty applications may need to explore other options.

Perfect For

  • DIY enthusiasts
  • Professionals in mechanical and maintenance fields

Skip If

  • Users needing heavy-duty strength for industrial applications

Specifications

Is Discontinued By Manufacturer
No
Product Dimensions
4.8 x 3.4 x 0.5 inches; 0.18 ounces
Item model number
Henkel / osi -tanch-it-
Department
Unisex-Adult
Date First Available
January 16, 2007
Manufacturer
Henkel Corporation
ASIN
B000I1RSNS
Best Sellers Rank
See Top 100 in Automotive
Brand
Loctite
Specific Uses For Product
Threadlocker
Material
Dimethylacrylate ester
Item Form
Liquid
Special Feature
Strong

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Last updated: October 27, 2025

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Review Atlas Editorial Team

Our editorial team consists of product experts, technical specialists, and experienced reviewers who are passionate about helping consumers make informed decisions.