

🔧 Lock it down cleanly, fix it fast, and never look back!
Loctite 37643 Blue Medium Strength Threadlocker Stick is a 9g wax-like adhesive stick designed for reliable, medium-strength thread locking on metals including aluminum and stainless steel. Its mess-free applicator and fast 10-minute cure time make it perfect for automotive and maintenance tasks, especially in challenging overhead or oily environments. Compatible with bolts from 6mm to 19mm, it offers a secure hold that’s removable when needed, making it a must-have for professionals seeking efficient, clean, and durable repairs.




| ASIN | B0053ZNMDE |
| Best Sellers Rank | #2,141 in Automotive ( See Top 100 in Automotive ) #8 in Thread Lock Sealers |
| Brand Name | Loctite |
| Color | Blue |
| Compatible Material | Aluminum, Metal, Stainless Steel |
| Container Type | Tube |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,980) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340376434 |
| Included Components | (1) LOCTITE 248 Blue Threadlocker Glue Stick | Blue, 9 Gram Wax Stick |
| Item Form | Stick |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 0.06 Pounds |
| Manufacturer | Loctite |
| Material Type | Aluminum,Stainless Steel |
| Model | 37643 |
| Other Special Features of the Product | Strong |
| Specific Uses For Product | Repair |
| UPC | 079340376434 |
| Unit Count | 1.0 Count |
| Viscosity | [AI] Medium |
| Volume | 9 Cubic Centimeters |
| Water Resistance Level | Not Water Resistant |
P**.
The Perfect Solution for Easy and Mess-Free Application
I absolutely love my Loctite lipstick! It's like gold for mechanics, offering a convenient way to get the job done without the hassle of shaking old bottles. With this product, there's no mess or worries about it tipping over. It lasts just as long, if not longer, than the small bottles, making it perfect for those awkward jobs. Highly recommend it for anyone looking for a reliable and efficient solution.
M**A
Convenient Loctite Threadlocker Stick for Easy Application
This Loctite Threadlocker Stick is a game-changer when it comes to securing bolts and screws in place. It's so easy to use - just twist it up like a glue stick and apply directly to the threads. No more messy liquid dripping everywhere! The medium strength formula holds everything tight without making it impossible to remove later if needed. One thing to note is that the stick format can make it a bit tricky to reach tight spaces or apply evenly on smaller screws. However, the convenience and mess-free application definitely outweigh this minor inconvenience. Overall, if you're tired of dealing with runny liquids and want a cleaner threadlocking experience, this stick is worth a try!
L**S
Incredible Threadlocker Stick for Easy Application
This threadlocker stick is a game-changer! I love how convenient it is to use with its twist-up design, making application a breeze. The medium strength formula is perfect for securing screws and bolts without any worries about them coming loose. I've used it on various projects around the house, and it has never failed me. The 9g size is just right for keeping in my toolbox or pocket for quick fixes on the go. I highly recommend this Loctite 37643 Blue Medium Strength Threadlocker Stick to anyone who wants a reliable solution for preventing loosening and leakage. It's like having a magic wand for all my DIY needs! 🔧🧰💙
M**O
Excellent
Use on scope mounting screws Works well Easy to put on screws
T**Y
Works great for EDC Knife scale screws.
Perfect size and amount to throw in a toolbox or like I do in my truck glove compartment. Anywhere you have threads that are subject to vibration this stuff does the trick. Put it on all my valuable Spyderco, Benchmade and Medford Knives. Been using it for about 8 years and I have yet to lose a single screw. Not even had one blackout! I’m a full time Electrician so needless to say I put my knives and parts alike through there paces. If it’s something that is going to be subject to higher temperatures I would highly recommend stepping up a strength level to maybe a “ red “ loctite product. Also keep in mind a little of this stuff goes a long way so just a dab will do for most cases. A+ overall!
D**N
Useful
Much better than the liquid. Very useful when building rifles. Less mess and no waiting for it to dry vs the liquid.
A**R
Very easy and clean to apply
Excellent product
D**.
Better than cheap knockoffs
No mess. Easy to use. The right amount of hold
K**K
When working above my head, this is my choice for thread lock, works as expected and does not leak all over.
S**E
Un tiempo estuve batallando con los tornillos de mis navajas , con tan solo un poco de loctite, quedan exelente y no se aflojan .
L**F
Bon produit facile à appliquer et fonction très bien
A**W
Excellent! less messy than the liquid and seems to perform equally well
Y**U
bon
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