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🔧 Lock it down like a pro—because your heavy-duty projects deserve nothing less!
Loctite 37479 271 Red Heavy Duty Threadlocker is a professional-grade anaerobic adhesive designed for securing large bolts and studs (≥25 mm) in automotive and industrial applications. It bonds to multiple metals, sets quickly in 10 minutes, fully cures in 24 hours, and withstands temperatures up to 140°F. Its enhanced oil tolerance and heat-assisted disassembly make it ideal for demanding environments requiring durable yet serviceable fastening solutions.









| ASIN | B004DWUN5S |
| Brand | Loctite |
| Brand Name | Loctite |
| Colour | Red |
| Compatible Material | Stainless Steel |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 1,071 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 | Loctite 492142 Threadlocker 271 High Strength Bottle, Red, 36-ml |
| Item Weight | 0.1 Pounds |
| Manufacturer | Loctite |
| Manufacturer Part Number | 492142 |
| Material | Aluminum , Stainless Steel |
| Material Type | Aluminum,Stainless Steel |
| Model | 37479 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Heat Resistant |
| Special Feature | Heat Resistant |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340374799 |
| Unit Count | 1.22 Milliliters |
| Volume | 36 Millilitres |
| Water Resistance Level | Not Water Resistant |
M**E
He loves it!
I am a retired A.S.E. master technician and have used thread lockers many times over many years. This time I was fixing a friends revolver barrel that had come loose and was rotating. Problem solved and my buddy is once again a straight shooter.
J**.
Buena compra
Rinde mucho y es un producto y marca que cumple lo que promete
N**S
Did the job perfectly
Replacing axle nuts on my ‘06 Corvette. Locked them on the shaft easily. As recommended, waited 24 hours for the thread lock to set properly.
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.
D**Y
a little bit costly.
Very good.
Trustpilot
1 week ago
3 weeks ago