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🔧 Lock it down like a pro — strength that sticks and lasts!
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 rapidly within 10 minutes and fully in 24 hours, tolerates slight oil contamination, and withstands extreme temperatures from -65°F to 360°F. Tested to military-grade standards, it delivers 3000 PSI holding power, resists shock and vibration, and fluoresces under UV light for easy inspection.









| Asin | B004DWUN5S |
| Best Sellers Rank | #40,905 in Automotive (See Top 100 in Automotive) #173 in Automotive Fillers, Adhesives & Sealants |
| Brand Name | LOCTITE |
| Color | Red |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (425) 4.8 out of 5 stars |
| 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 |
| Manufacturer | Loctite |
| Material Type | Metal |
| Model | 37479 |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | High-Strength, Permanent Locking |
| Part Number | 492142 |
| Specific Uses For Product | Repair |
| Tensile Strength | 3000 Pounds Per Square Inch |
| Unit Count | 36 Milliliters |
| Upc | 079340374799 |
| Viscosity Level | Low |
| Volume | 36 Milliliters |
| Water Resistance Level | Not Water Resistant |
User
Buena compra
Rinde mucho y es un producto y marca que cumple lo que promete
User
#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.
User
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
User
buena calidad
Llega a tiempo y Excelente producto
User
Un buen pegamento
Es un pegamento bastante funcional
Trustpilot
3 weeks ago
2 months ago