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Loctite Threadlocker Red 271 is a professional-grade, permanent threadlocker designed to secure metal fasteners up to 1 inch in diameter. Its fast-setting, moisture-resistant formula prevents loosening from vibration while protecting against rust and corrosion. With heat resistance up to 500°F and a full cure time of 24 hours, it delivers durable, tamper-proof bonds ideal for automotive, industrial, and heavy-duty applications.






| ASIN | B01EZTQ4A6 |
| Best Sellers Rank | #29 in Automotive ( See Top 100 in Automotive ) #1 in Thread Lock Sealers |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | Red |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.8 out of 5 stars 11,458 Reviews |
| Full Cure Time | 24 hours |
| Global Trade Identification Number | 30079340271006 |
| Included Components | Threadlocker Tubes (12) |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Loctite Red 271 Threadlocker, 6-Milliliter Tubes, Case of 12 (209741-12) |
| Item Weight | 5.67 g |
| Manufacturer | Henkel Corporation |
| Material | Metal |
| Material Type | Metal |
| Model | Threadlocker 271 |
| Number of Pieces | 12 |
| Other Special Features of the Product | Permanent |
| Part Number | 209741-12 |
| Special Feature | Permanent |
| Viscosity Level | Medium to High |
| Volume | 6 ml |
| Water Resistance Level | Not Water Resistant |
J**P
Lock It Down!
Pros: High Strength: Provides a strong bond for heavy-duty applications. Permanent Adhesive: Ideal for critical fasteners that will not need to be disassembled. Excellent Resistance: Withstands high temperatures and various chemicals. Versatile Use: Suitable for both automotive and industrial applications. Cons: Permanent Nature: Difficult to remove once cured, which may not be ideal for all users. Curing Time: Requires some time to fully cure, which may delay projects. Price Point: Slightly higher than other threadlockers on the market. Detailed Review: Performance: Loctite Threadlocker Red 271 excels in holding heavy-duty fasteners securely in place. Once applied, the bond strength is impressively robust, ensuring that nuts, bolts, and fasteners remain locked under stress and vibration. Ease of Use: The product is straightforward to apply. A small dot is sufficient for most applications, and the precision nozzle helps prevent over-application. The drying time is acceptable, but users should plan for a full curing time of up to 24 hours to achieve maximum strength. Features: Temperature Resistance: Can withstand temperatures from -65°F to 300°F (-54°C to 148°C). Chemical Resistance: Resistant to gasoline, oil, and various solvents. Application Versatility: Suitable for metal surfaces, which makes it versatile for use in various industries. Quality: Loctite is a well-known brand in the adhesive industry, and Threadlocker Red 271 lives up to its reputation. The consistency and strength of the adhesive ensure that it performs reliably in demanding applications. Value for Money: While it may be priced higher than other alternatives, the strength and longevity of the bond can save money in the long run by reducing the need for maintenance and reapplication. For critical applications, the investment is often worth it. Experience Using the Product: Personally, I have used Loctite Threadlocker Red 271 for securing bolts on automotive parts and for machinery that undergoes frequent vibrations. The results have been consistently reliable, with no loosening or need for re-tightening after applying it. The peace of mind that comes with knowing fasteners are secure is invaluable. Recommendation: For anyone dealing with high-stress applications or where permanent fastening is required, I highly recommend Loctite Threadlocker Red 271. It provides exceptional bond strength and reliability, making it a go-to for professionals and DIY enthusiasts alike. Conclusion: In conclusion, Loctite Threadlocker Red 271 stands out as a top-tier product in the realm of threadlockers. Its performance, quality, and ease of use make it a valuable tool in anyone's arsenal. While its permanent nature may not be suitable for every user, for those seeking a high-strength solution for nuts, bolts, and fasteners, this product delivers on its promises.
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.
A**R
Good
Good
C**Z
Saved my wheel lights!
I recently installed some lights that go around my wheel wells on my jeep. I noticed one day after going over a bump that I had a horrible metal on metal sound in my passenger front wheel. Upon inspection, that bump knocked the screw loose and it was rubbing the back of the screw against metal while I drove. I tightened it, and within two days it was loose again. My friend suggested this product and now, so do I! I did two coats on every single screw used on the 4 tires (12 total), with dry time between each application. It’s been almost 3 weeks and not a single loose screw yet! I’ll be keeping some of this on hand forever now. A little goes a long way and it works!
J**E
Great thread locker. recommended product
Must have product for small screws and moving parts that you dont want to lose. Especially useful with firearms for installing sights and other items that need the small screws and what not retained. It is extremely useful and definitely worth the price. It is easy to apply with the dripper style tube. Does not take much especially of the red so this tube should last quite a bit for most people as I bought a tube years ago, use it quite often and still have some left that will last me a long while
M**C
use this when you mean business
Red Loctite is the one you reach for when you absolutely do not want something backing out from vibration or stress, and this stuff delivers on that completely. Used it on some drivetrain hardware and those bolts are not going anywhere, exactly the outcome I needed. Just make sure you really want it permanent because you will need heat to get it off later, this stuff is seriously strong.
B**S
Great
Great for sealing. Great price.
I**Z
Excelente
Excelente
A**R
Super Stuff
Does what it says on the tin. Very pleased sorted my problem out straight away.
P**Z
Best
It really works . Ek baar screw laga dia to toot k hi niklega
N**I
قوي
اقوى من الأزرق
D**R
SAVAGELY STRONG - Do not worry about anything coming loose
★★★★★ Small bottle, absolutely savage bond Bought this to attach the eye bolt/hook on my magnet fishing rig to the magnet body, and it turned out way stronger than I expected from something this small. The application process itself is dead simple — clean the threads with rubbing alcohol, degrease, drop a few dabs in, thread it together, and let it sit. The cure time is the part people skip and shouldn’t. I gave mine a full 24 hours before touching water with it, and the difference is night and day compared to rushing it. Once cured, this stuff locks in like it’s welded — no shifting, no loosening, nothing. I’ve pulled some genuinely heavy stuff out of canals and rivers with this rig since — bikes, chains, random scrap metal — and the bond on that hook hasn’t budged a millimeter. Given how much force gets thrown through that eye bolt when you snag something heavy and yank hard, that’s a serious testament to how strong this hold actually is. Only thing worth flagging: a little goes a long way, so don’t overdo it thinking more equals stronger — it doesn’t, and it just makes a mess. Additionally, i added a thin superglue layer above because this stuff dries WITH THE ABSENCE OF AIR. Overall, this is the cheapest insurance you can buy against losing your hook (and whatever you just caught) at the bottom of a river. Zero regrets, and I’d recommend it to anyone building or maintaining their own magnet fishing setup.
I**R
Excelente
Tal cómo se escribe etiqueta, la verdad lo ocupé para fijar unas tuercas con tornillos. Secando queda muy resistente muy buen producto esto es para fijar por un periodo indefinido
Trustpilot
2 weeks ago
1 week ago