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🔒 Lock it down, never let go—power your projects with permanent strength!
Permatex High Strength Threadlocker Red 50 ml is a premium adhesive solution designed for heavy-duty fasteners between 10mm and 25mm. Delivering 3,000 PSI of holding power, it permanently secures studs and press fits, resisting vibration and shock. This heat-resistant threadlocker seals threads against leaks, rust, and corrosion, ensuring long-lasting, rock-solid assemblies in automotive and industrial applications.














| ASIN | B009YNW9YY |
| Best Sellers Rank | #3,977 in Automotive ( See Top 100 in Automotive ) #15 in Thread Lock Sealers #4,311 in Oils & Fluids |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | As Shown |
| Compatible Material | Metal, Plastic |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 1,098 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00686226271501 |
| Included Components | Threadlocker |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 0.16 Pounds |
| Manufacturer | ITW |
| Material | Silicone |
| Material Type | Silicone |
| Model | PTX27150 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Heat Resistant, High Strength, Strong |
| Part Number | PTX27150 |
| Special Feature | Heat Resistant, High Strength, Strong |
| Specific Uses For Product | Heavy-Duty Applications, Metal Fasteners |
| Tensile Strength | 3000 Pounds Per Square Inch |
| UPC | 686226271501 |
| Unit Count | 1.0 Count |
| Viscosity Level | High |
| Volume | 50 Milliliters |
| Water Resistance Level | Not Water Resistant |
V**K
It applied easily and seem to work well
I needed a threadlock for a couple of small set screws going into aluminum on a mower cylinder head. This went one easily and dried well. I did not try to remove the small set screw after it dried because it is something that will never need to be removed,, so I cannot say how tightly it locked the set screw in place. A little bit goes a long way, so the small tube will last me pretty much forever.
C**N
GREAT PRODUCT AT GREAT PRICE
GREAT PRODUCT AND SO MUCH CHEAPER ON HERE THAN OUR LOCAL VENDORS
S**E
Permatex 27100 HIgh Strength Treadlocker is jus that - strong!!!
This product states that it will require heating up the parts secured with this threadlocker to 500 degrees in order to separate the parts after the threadlocker cures, so you really need to be sure this is what you want it to do. It was exactly what I was hoping for, and it worked flawlessly by holding a barrel nut in the handle of my Colt 45 that had a screw that would not separate from the barrel nut. I put the threadlocker on the barrel nut, attached it to my Colt, and the next day - today, I was able to get the screw out of the barrel nut, but it took some force to get it to break free. The barrel nut did not budge at all, so kudos to Permatex!
W**L
Locking tighly.
Great product and this little tube does the job and keeps on going. I was in search of a high temperature thread locker for a high performance engine rebuild. Product arrived fast and was reasonably priced, actually it was a few dollars cheaper than the retail auto stores. Permatex worked great in the application I needed it for and now I have plenty of left over thread locker if needed in the future.
R**L
Great product
The loctite is a great price. The thread lock is excellent for automotive fasteners.
R**.
Great Stuff for Leather Punches
I bought this for the screw in handles on my leather punches. Once I made sure the oil was out of the treads I put this on, screwed them in, and put some pliers on them to tighten them down. I have used it on 3 sets and not one has broken lose and I use them every day. Great stuff and I highly recommend.
T**Y
Make sure you shake it first
normally I use the blue thread locker for everything. I used the blue to hold a compensator on gun which had to be a specific orientation. After a couple hundred rounds it started to twist. This is when I looked in to how thread lockers work and more importantly that you loosen bolts and such by applying heat. Guess what happens to a compensator when you fire it? Yup. Bought this and for whatever reason thought it's in a tube I don't need to shake it like the blue stuff. Took to range next day and started to turn almost immediately. Realizing the err or my ways I shook it and applied again. It hasn't budged since One downside to this setup is to completely remove barrel requires to unscrew compensator. So at some point I'm going to have to be able to do that. I'm using a bore snake to clean barrel without removing it but at some point I'll try and heat it up with a heatgun and see if it nudges. I'll update this if I remember.
A**R
If you work on cars like I do you will need a good product named thredlocker like Permatex.
I have worked on cars and trucks for most of my adult life ; you cannot do proper repairs to engine parts or rebuilds/ repairs without using a product like threadlocker to make sure your bolts and nuts are secured and not vibrate or loosen over time. It make you feel more sure your repairs will stay secured.
あ**か
その通りです
まあ、商品名の通りです。 ただ、着色が赤で手につくと消えにくいです。
D**.
Useful product
works well when used as intended and directed.
D**K
Awesome product at great price
nice product,
E**E
Excelente pegamento.
Lo utilicé para fijar el tornillo de una sartén, y vaya que cumplió lo prometido, a pesar de las altas temperaturas de la estufa de gas L.P. el tornillo se mantuvo fijo un par de meses, hasta que por el uso diario, y el detergente para trastes, se comenzaba a aflojar. Terminó por romperse la pieza donde iba el tornillo, antes que este se despegara. Definitivamente lo recomiendo.
C**S
Perfect👍
Excellent product.Thank you.
Trustpilot
1 month ago
3 weeks ago