

🔧 Lock it down, loosen it up—your fastener’s best friend!
Loctite Threadlocker Blue 242 is a medium-strength, quick-setting adhesive designed to lock and seal metal fasteners sized 6-19mm. It prevents loosening caused by vibration, protects against rust and corrosion, and allows easy removal with hand tools. Ideal for small motors, mowers, and power equipment, it sets in 10 minutes and fully cures in 24 hours, making it a must-have for professionals and DIYers seeking reliable, maintenance-friendly fastening.






| ASIN | B000I1RSNS |
| Best Sellers Rank | #31 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 |
A**R
Works as it should. Excellent product
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
S**L
Does Exactly What It’s Supposed to Do
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.
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!
R**.
Great for mototcycle bolts
Works great on motorcycle bolts, did the job and everything has stayed put.
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.
L**S
Locitite Threadlocker
Locitite Threadlocker... was exactly what my hubby needed... great stuff... easy to use... great value for the money
E**S
Best stuff to keep your threaded parts together! Can be removed with some effort, not by accident!
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.
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.🌟
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
L**S
Shake before use.
O**T
Colle correspondant exactement au descriptif. Elle n 'a pas coulé autour si on prend soin de mettre juste ce qu'il faut en tenant compte que cela peut déborder en appuyant pour fixer.
1**N
I am highly satisfied with this product; it is an excellent item to have readily available. I will undoubtedly repurchase it in the future. Thank you, seller.
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