

🔒 Lock it down like a pro—because your bolts deserve the best.
Loctite 37423 Green Penetrating Threadlocker is a medium-strength adhesive designed for pre-assembled fasteners between 2.2 mm and 12 mm. It bonds to all metals, including passive substrates, with enhanced oil tolerance and heat resistance up to 140°F. Setting in 20 minutes and fully curing in 24 hours, it secures components exposed to shock, vibration, and harsh chemicals, making it ideal for automotive repairs and industrial use.









| ASIN | B000IHLZ5E |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #114,257 in Automotive ( See Top 100 in Automotive ) #355 in Automotive Fillers, Adhesives & Sealants |
| Color | Green |
| Customer Reviews | 4.8 4.8 out of 5 stars (252) |
| Date First Available | 4 September 2012 |
| Item model number | 37423 |
| Material Type(s) | Aluminum,Stainless Steel |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 16.51 x 9.69 x 2.03 cm; 0.28 g |
D**.
This little green tube is the ultimate bolt babysitter. I had screws on my lawnmower that thought they were auditioning for Cirque du Soleil—constantly twisting, flipping, and popping out. One drop of this threadlocker, and suddenly they’re calm, stable, and finally committed to staying put. What I love most is how easy it is to apply—no crazy odor, no giant cleanup, just a drop that does the job. It seeps in like magic, and the next thing you know, your hardware is locked in like Fort Knox. If you’ve got machines, bikes, or gear that rattles apart, this is basically the duct tape of bolt security—only classier.
S**H
I have used loctite products for yrs. in industry. For me they worked very well
J**.
Ya lo he comprado varias veces, es muy buen producto
M**S
Could not find anywhere but here worked good
W**.
This thread locker works very good on assembled parts, I use it on bolts and nuts.
Trustpilot
2 days ago
2 weeks ago