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🔧 Lock it down like a pro—strength that won’t quit!
Loctite 271 Threadlocker is a high-strength, red anaerobic adhesive designed for permanent locking and sealing of metal fasteners up to 1" (25mm). It cures in 10 minutes and fully in 24 hours, delivering 3000 PSI tensile strength and withstanding temperatures from -65°F to 360°F. Trusted by military standards (Mil-S-46163A) and ASTM tested, it resists shock, vibration, and slight oil contamination, making it ideal for automotive and industrial applications requiring reliable, long-lasting adhesion.









| ASIN | B004DWUN5S |
| Best Sellers Rank | #34,868 in Automotive ( See Top 100 in Automotive ) #154 in Automotive Fillers, Adhesives & Sealants |
| Brand | LOCTITE |
| Brand Name | LOCTITE |
| Color | Red |
| Colour | Red |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 425 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340374799 |
| Included Components | (1) Threadlocker 271 High Strength Bottle, Red, 36-ml |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 0.1 Pounds |
| Item form | Liquid |
| Manufacturer | Loctite |
| Material | Metal |
| Material Type | Metal |
| Model | 37479 |
| Number of Pieces | 1 |
| Other Special Features of the Product | High-Strength, Permanent Locking |
| Part Number | 492142 |
| Special features | High-Strength, Permanent Locking |
| Specific Uses For Product | Repair |
| Specific uses for product | Repair |
| Tensile Strength | 3000 Pounds Per Square Inch |
| UPC | 079340374799 |
| Unit Count | 36 Milliliters |
| Viscosity Level | Low |
| Volume | 36 Milliliters |
| Water Resistance Level | Not Water Resistant |
J**.
Buena compra
Rinde mucho y es un producto y marca que cumple lo que promete
S**.
#271. The strongest Loctite I’ve seen.
Awesome Loctite, as advertised, this is the strongest hold I’ve seen. Don’t put it in something unless you are 100% positive you want it to stay together. This takes extreme heat to break the bond from #271.
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
J**J
buena calidad
Llega a tiempo y Excelente producto
I**A
Un buen pegamento
Es un pegamento bastante funcional
Trustpilot
1 month ago
2 weeks ago