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🔧 Lock it down like a pro — don’t let your bolts bail on you!
Loctite 37479 271 Red Heavy Duty Threadlocker is a 36 ml high-strength adhesive designed for large bolts and studs (1 inch+). It bonds to various metals including stainless steel and aluminum, sets in 10 minutes, and fully cures in 24 hours. Engineered for extreme shock, vibration, and chemical exposure, it withstands temperatures up to 140°F. Trusted by professionals and OEMs, it offers a durable yet removable solution for automotive and industrial maintenance.









| ASIN | B004DWUN5S |
| Best Sellers Rank | #9,049 in Automotive ( See Top 100 in Automotive ) #33 in Thread Lock Sealers |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | Red |
| Compatible Material | Aluminum, Stainless Steel |
| Container Type | Bottle, Can |
| Customer Reviews | 4.8 out of 5 stars 427 Reviews |
| Full Cure Time | 24 hours |
| Global Trade Identification Number | 00079340374799 |
| Included Components | (1) LOCTITE 271 Threadlocker | Red, 36 ml Bottle |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 1.6 ounces |
| Manufacturer | Loctite |
| Material | Aluminum , Stainless Steel |
| Material Type | Aluminum,Stainless Steel |
| Model | 37479 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong |
| Part Number | 492142 |
| Special Feature | Strong |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340374799 |
| Unit Count | 1.22 Fluid Ounces |
| Viscosity Level | Medium |
| Volume | 36 ml |
| Water Resistance Level | Not Water Resistant |
A**M
Works
Love the lock and unlock tip and work good as well
C**P
good price for a good product
Use this product alot, best price on it here
G**T
Screws won’t budge
Used this for a rifle stock that was held on by 2 screws that would always come loose when shooting. This stuff kept it locked down with no issues. Highly recommend
D**R
Great price
It's Loctite what can you say. It works how it should. Great price for the large bottle.
T**.
Great price
This is a deal. The parts store charges this much for a little one.
T**S
Best Lock Tight Made
Best lock tight made.
K**T
Four Stars
great for using on bushings in transmissions
T**R
Loctite thread locker
Works great!
J**.
Buena compra
Rinde mucho y es un producto y marca que cumple lo que promete
J**J
buena calidad
Llega a tiempo y Excelente producto
I**A
Un buen pegamento
Es un pegamento bastante funcional
I**N
Excelente producto
Cumple Perfectamente cómo selllador de tornillos ya usados, es muy fácil de usar
C**E
SECOUER LA BOUTEILLE AVANT L'UTILISATION POUR UN RÉSULTAT MAXIMUM D'EFFICACITÉ
EXCELLENT N'OUBLIEZ PAS DE BIEN SECOUER LA BOUTEILLE AVANT L'UTILISATION POUR UN RÉSULTAT MAXIMUM D'EFFICACITÉ MERCI
Trustpilot
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