

🔧 Lock it down, loosen it up—thread security made smart and simple!
Loctite Threadlocker Blue 242 is a medium-strength adhesive designed to lock and seal metal fasteners sized 6-19mm, preventing loosening caused by vibration. It sets in 10 minutes and fully cures in 24 hours, offering protection against rust, corrosion, and leaks. The formula is removable with hand tools, making it ideal for maintenance on small motors, mowers, and power equipment. Compact and water-resistant, it’s a reliable solution for professionals and DIYers seeking durable yet serviceable thread security.






| ASIN | B000I1RSNS |
| Best Sellers Rank | #28 in Automotive ( See Top 100 in Automotive ) #1 in Thread Lock Sealers |
| Brand | Loctite |
| Color | Blue |
| Date First Available | January 16, 2007 |
| Department | Unisex-Adult |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340242005 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 6 Milliliters |
| Item Weight | 0.176 ounces |
| Item model number | Henkel / osi -tanch-it- |
| Manufacturer | Henkel Corporation |
| Material | Dimethylacrylate ester |
| Number of Pieces | 1 |
| Package Information | Tube |
| Product Dimensions | 4.8 x 3.4 x 0.5 inches |
| Special Feature | Strong |
| Specific Uses For Product | Threadlocker |
| Tensile Strength | 110 Pounds Per Inch |
| UPC | 079340242005 |
| Unit Count | 6 Milliliters |
| Viscosity | Medium |
| Viscosity Level | Medium |
| Water Resistance Level | Water Resistant |
M**N
Use this threadlocker for everyday fixes
Apparently, it works pretty well for keeping nuts and bolts tight without any hassle. i used it on some outdoor patio furniture to prevent loosening from weather, and it stayed put. the small bottle is handy for my toolbox, and the medium strength seems just right for stuff I don’t want permanently glued. the glue’s easy to apply and comes off when I need to adjust things later. overall, i’m pleased with how it keeps everything secure while still allowing later removal.🌟
M**S
Enhanced Performance and Reliability
The Henkel Loctite Threadlocker Red 271 has become an essential part of my toolkit for maintaining and securing threaded fasteners in various industrial and automotive applications. I rely on it primarily for its exceptional ability to prevent loosening due to vibration, which is crucial for critical components such as engine mounts, suspension parts, and other high-stress areas. Its robust formula not only locks and seals threads effectively but also provides outstanding resistance against moisture, preventing leaks and safeguarding against rust and corrosion over time. This feature alone has significantly reduced the need for additional hardware like lock nuts and washers, saving both time and money in maintenance and repair tasks. What sets the Loctite 271 apart is its ease of use and reliability. The application is straightforward: apply the threadlocker, allow it to set for just 10 minutes, and it fully cures within 24 hours, forming a permanent bond that ensures long-term security and durability. This rapid setting time combined with its high-strength characteristics makes it ideal for securing a wide range of fasteners, from small screws to larger bolts up to 1 inch in diameter. Whether I'm working on automotive repairs, machinery maintenance, or even DIY projects around the house, I can trust the Loctite 271 to deliver consistent results and maintain the integrity of fastened connections. Moreover, the versatility of this product extends beyond its primary function as a threadlocker. I've used it to strengthen slip and light press fits, further expanding its utility in various assembly and repair tasks. Its ability to withstand temperatures up to 500°F (260°C) once cured ensures resilience under extreme conditions, making it suitable for applications where heat resistance is critical. Overall, the Henkel Loctite Threadlocker Red 271 has proven to be a reliable companion in ensuring secure fastenings and enhancing the longevity of components across different projects. Whether you're a professional mechanic or a DIY enthusiast looking for a dependable threadlocker, I highly recommend considering the Loctite 271 for its superior performance, ease of use, and unmatched durability.
D**A
Impressed with the loctite threadlocker blue 242
Was using it to secure bolts at home and found it handy. Tried opening it one-handed and it worked smoothly. Prevented loosening and corrosion effectively. Pleased with the overall product quality and performance. Definitely a good purchase for anyone needing a reliable thread lock glue.
M**W
Awesome product
Worked great to keep the screws tightened in our bathtub faucet handles. Easy to apply! Every time we turned the water on the screws in the handles would loosen and the handles would rattle. I finally got this product, put it on the screws, tightened and let it sit over night and the screws are now solid tight and problem is solved. It has been months now and still holding strong! Thanks!
S**N
Fixed my daughters chair where the bolt kept coming loose
Loctite Blue 242 is basically the secret sauce for anyone tired of screws slowly working themselves loose and falling out like they’ve given up on life. This stuff is the perfect middle ground: strong enough to keep things tight, but not so strong that you need a blowtorch to undo your mistakes later. I picked it up because my daughter’s desk chair kept losing its bolts. Every few days she’d sit down and the whole thing would wobble like it was auditioning for a comedy sketch. Tighten, loosen, repeat — super annoying. One tiny dab of Blue 242 on each bolt and suddenly the chair is as solid as if it came out of the box yesterday. No more surprise acrobatics. Why I like it: It just works. Simple, reliable, and zero drama. Removable without a fight. Hand tools are enough — no heat, no swearing. A little goes a long way. One tube feels like it’ll survive the apocalypse. Great for anything that vibrates loose. Perfect for chairs, bikes, small engines, you name it.
J**N
Works well, great brand and trusted quality
Works well, great brand and trusted quality
W**1
The go-to threadlocker
Very useful for a variety of applications when you want to make sure that things don't come unscrewed but you want the ability to remove it again in the future. You can remove this stuff with sufficient torque (no heat gun required) so it's probably the best Loctite for most applications.
S**E
Essential Tool for Securing Small Screws
This tool is a game-changer for handling tiny screws and delicate moving parts without the fear of losing them. Perfect for firearm enthusiasts needing precision when installing sights or other components. The application is a breeze with the convenient dripper-style tube. A little goes a long way, especially with the red solution, ensuring long-lasting use. I purchased a tube years ago, frequently use it, and there's still plenty left – talk about value for money!
A**O
Me ayudó muchos con unos tornillos del caliper de mi motocicleta, los fijó muy bien
R**D
Nice product dries quikly and durable adhesive quality is nice and ofcource value for money usa made product hai quality accha hai india mai aisa kuch nahi banta
G**H
great
A**R
Excellent
L**S
Shake before use.
Trustpilot
Hace 2 semanas
Hace 2 semanas