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🔧 Lock it down like a pro—permanent strength that won’t quit!
Pro-Seal Permanent Threadlocker is a high-strength anaerobic liquid designed to lock, seal, and join threaded metal fasteners up to 3/4" diameter. It cures fully in 24 hours with a quick application time under 25 minutes, operating reliably across extreme temperatures from -51°C to 149°C. This red threadlocker meets military standard MIL-S-22473D, offering permanent, gap-filling adhesion that withstands heat and vibration, making it the go-to choice for professionals demanding durable, fail-safe fastening.
| ASIN | B000FW62SW |
| Best Sellers Rank | #733,262 in Automotive ( See Top 100 in Automotive ) #187 in Thread Lock Sealers |
| Brand | SealPro |
| Customer Reviews | 4.6 4.6 out of 5 stars (300) |
| Date First Available | January 12, 2009 |
| Global Trade Identification Number | 00050291271061 |
| Is Discontinued By Manufacturer | Yes |
| Item Form | Liquid |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 6 x 4 x 6 inches |
| Item model number | 27106 |
| Manufacturer | Pro-Seal |
| Manufacturer Part Number | 27106 |
| Material | Synthetic Rubber |
| Number of Items | 1 |
| Product Dimensions | 6 x 4 x 6 inches |
| Style | Threadlocker |
| Surface Recommendation | Metal |
| UPC | 050291271061 |
| Unit Count | 1.0 Count |
C**T
Great product
Works great, use sparingly
S**R
It Works!
Sealed 3 to 4 threaded areas. Has held up so far.
M**H
Works as described.
This threadlocker works as described. It was easy to work with and I lke that the 6ml bottle is easily sealable. I like products that work like they are supposed to and this one does at a lower cost than other similar products.
R**S
Like a rock
I was skeptical about this brand but I thought I would give it a chance for the price. It works just like the name brand stuff. The only thing I didn't like was you have really bear down to get it out of the bottle.
A**R
Works great!
Great product, great price!
J**A
It works.
It works so far. Long drying/cure time. Other than that, as long as it can hold the screws on my bike, I'm happy. Good value for the money.
S**N
permanent is not always permanent
Permanent can be broken loose if with nut and bolt. Phillips screws will strip before breaking loose.
A**R
I used to seal a transmission fluid tube.
I sealed up the transmission filler tube for a turbo Hydro 400 transmission a year ago and there's no leaks since.
C**E
Great product and very easy to use. The size is good as I didn't need to much. Flows into threads very well.
R**H
Very strong and very fast acting thread lock. We'll worth the money.
R**E
As described; this is an effective thread lock for when you don't want nuts and bolts to work loose.
A**H
Does exactly what it's supposed to
H**R
Good product used for my blood pressure machine
Trustpilot
1 month ago
5 days ago