

🔧 Lock it down like a pro — don’t let your bolts bail on you!
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 quickly (10 min fixture, 24 hr full cure), withstands temperatures from -65°F to 360°F, and resists shock, vibration, and chemical exposure. Military-grade tested and fluorescent under UV for easy inspection, it’s the trusted choice for automotive and industrial applications requiring durable, reliable fastening.









| ASIN | B0028OJAIY |
| Best Sellers Rank | #68,561 in Automotive ( See Top 100 in Automotive ) #246 in Automotive Fillers, Adhesives & Sealants |
| Brand | LOCTITE |
| Customer Reviews | 4.7 4.7 out of 5 stars (615) |
| Date First Available | 16 August 2012 |
| Exterior | Smooth |
| Item Weight | 4.54 g |
| Item model number | 37421 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 37421 |
| Model | Loctite 487232 Threadlocker 271 High Strength Tube, Red, 6-ml |
| OEM Part Number | 37421 |
| Product Dimensions | 16.51 x 9.69 x 2.03 cm; 4.54 g |
| Special Features | Strong |
| Viscosity | Low viscosity |
D**É
Filetage adapteur pour moteur
N**S
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.
M**E
Red Loctite is great for big, critical hardware applications. I usually default to blue Loctite for just about all the applications I find, but this time I was replacing wheel bearings and disc brake mounts on a 1 ton pickup, so that included both big hardware AND critical applications - really don't want those working loose over the next 50,000 miles!!! That would be a heck of a surprise. As usual, very easy to use in the tube - just apply a bit to the leading edge of the threads, run the bolt in, and torque it down. Of course, removing hardware with red Loctite is no joke but there's always heat if needed! That also means that the hold is fantastic and again, shouldn't work loose until it's intentionally persuaded with force and/or heat. So ease of removal is not easy at all - but that's the point! Applying out of the tube is very easy: just open the cap and cut off a tiny edge of the nozzle, then apply just a little bit (I've learned not to apply too much - it's just unneeded). Definitely not messy either, which is fantastic. When you apply it to threads, it really clings to the threads, allowing you time to get it in place and run down to torque. But it's also just runny enough to really work its way down into the threads. So overall, if you need to make sure a big piece of critical hardware doesn't move until you absolutely need it to, there's no better option that this red Loctite!
N**E
tres bon produits
C**S
Perfect.Thanks so much.A++++++
Trustpilot
1 month ago
1 day ago