Loctite

Loctite Threadlocker Blue 242 - Removable Thread Lock Glue for Nuts Bolts Fasteners Medium Strength Screw Glue to

1277+ bought in the past month

$6.31$7.98

About this item

  • Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment
  • Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
  • Removable: Can be removed with hand tools
  • Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
  • For 6-19mm Fasteners: Medium-strength formula for use on threads for 6mm to 19mm nuts and bolts
$6.31
Was $7.98Save $1.67

In Stock

DeliveryThursday 9 Apr – 15 Apr · Order within 12h 2m
Easy Returns · 30-day window
This order is a gift

In Stock

Secure Checkout
Free Returns
30-Day Guarantee
Secure checkoutAll transactions are SSL-encrypted. Your payment info is never stored.
Free returnsReturn or replace within 30 days
Fast deliveryOrders ship within 1 business day and arrive in 4–8 days.
Buyer protectionIf your order arrives damaged or doesn't show up, we'll make it right.
24/7 supportOur team is here to help. Reach us anytime by email or chat.
Ships fromOur Warehouse
Returns
Easy Returns30-day return window
PaymentsSecure transaction

Product details

BrandLoctite
Specific Uses For ProductThreadlocker
MaterialDimethylacrylate ester
Item FormLiquid
Special FeatureStrong

Technical specifications

brandLoctite
specific_uses_for_productThreadlocker
materialDimethylacrylate ester
item_formLiquid
special_featureStrong
colorBlue
item_package_quantity1
package_informationTube
item_volume6 Milliliters
viscosityMedium
full_cure_time24 Hours
water_resistance_levelWater Resistant
tensile_strength110 Pounds Per Inch
unit_count6 Milliliters
viscosity_levelMedium
upc079340242005
number_of_pieces1
global_trade_identification_number00079340242005
manufacturerHenkel Corporation
product_dimensions4.8 x 3.4 x 0.5 inches
item_weight0.176 ounces
departmentUnisex-Adult
item_model_numberHenkel / osi -tanch-it-
is_discontinued_by_manufacturerNo
date_first_availableJanuary 16, 2007
best_sellers_rank#30 in Automotive ( See Top 100 in Automotive ) #1 in Thread Lock Sealers

From the brand

Product detailProduct detailProduct detailProduct detailProduct detailProduct detail

Customer reviews

4.851,245 ratings

Customers say

Customers find this thread locker works well on both bolts and screws, providing a strong hold that hasn't budged after thousand rounds of use.

★★★★★

Works as it should. Excellent product

CustomerMarch 6, 2026✓ Verified purchase

What else can be said about blue loctite. Use sparingly. A little can go a long way. Easy to use. Great value. Holds screws in place as it should Read more

★★★★★

Enhanced Performance and Reliability

Marco CardenasJune 22, 2024✓ Verified purchase

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. Read more

★★★★★

Use this threadlocker for everyday fixes

Miss EllisonJanuary 15, 2026✓ Verified purchase

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.🌟 Read more

★★★★★

Best stuff to keep your threaded parts together! Can be removed with some effort, not by accident!

E. MorbiusFebruary 27, 2026✓ Verified purchase

I have used this for more than 40 years. Always works. Easy to apply (More is not better). A slim stripe along the threads will do the best and will permit you to break the seal, with some effort. Whatever threads you "locK" will not unthread due to vibration or stress but can be unlocked, if needed. Especially effective on loose or worn threads. A little bit goes a long way. I usually apply it to the threads sparingly for best effect. If you want the threads to permanently NEVER come loose, use the Red. Have always had a tube of this around for the last 40 years. No need to overtorque (tighten) and risk stripping threads or breaking a bolt. Read more

★★★★☆

Fixed my daughters chair where the bolt kept coming loose

StevenFebruary 6, 2026✓ Verified purchase

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. Read more

★★★★★

Impressed with the loctite threadlocker blue 242

Daniel GarzaJanuary 6, 2026✓ Verified purchase

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. Read more

★★★★★

Does Exactly What It’s Supposed to Do

Shawn CaudillFebruary 14, 2026✓ Verified purchase

It’s blue Loctite 242. It works as advertised. Keeps fasteners from backing out due to vibration but still allows removal with normal hand tools. I’ve used it on vehicle hardware and other projects where I don’t want bolts walking loose over time. Apply it properly, let it cure, and it does its job. No drama. If you’re working on anything that sees vibration (automotive, motorcycles, equipment), this is a must-have in the toolbox. Read more

Recently Viewed