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🔒 Lock it down with Loctite Green 290 — the pro’s secret to unshakable fasteners!
Loctite 37423 Green Penetrating Threadlocker is a medium-strength adhesive designed for pre-assembled fasteners sized 2.2 mm to 12 mm. It features a low viscosity formula that penetrates threads quickly, setting in 20 minutes and fully curing in 24 hours. Compatible with metals like stainless steel and aluminum, it resists shock, vibration, and chemicals, making it ideal for automotive and industrial maintenance. Disassembly requires heat and hand tools, ensuring secure yet serviceable bonds.
| ASIN | B000IHLZ5E |
| Best Sellers Rank | #44,318 in Automotive ( See Top 100 in Automotive ) #67 in Thread Lock Sealers |
| Brand Name | Loctite |
| Color | Green |
| Compatible Material | Metal |
| Container Type | Can, Tube |
| Customer Reviews | 4.8 4.8 out of 5 stars (270) |
| Full Cure Time | 24 Hours |
| Included Components | (1) 290 Threadlocker for Automotive Pre-Assembled Fasteners | Green, 6 ml Tube |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 0.04 Pounds |
| Manufacturer | Loctite |
| Material Type | Aluminum,Stainless Steel |
| Model | 37423 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong |
| Part Number | 487234 |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340374232 |
| Viscosity Level | Low |
| Volume | 6 Milliliters |
| Water Resistance Level | Not Water Resistant |
D**.
The Unsung Hero of My Toolbox
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.
W**.
A very good product.
This thread locker works very good on assembled parts, I use it on bolts and nuts.
L**K
Works
Have used this stuff for a long time ant it works great.
J**N
Great product
Replaced old stock, I use it frequently. Highly recommend
J**A
Penetrating thread locker
This is medium strength thread locker, in a very thin formulation so that it will creep into threads and act as a thread locker for items already assembled. It works well on bolts and nuts that do not have grease or oil on them. If that is the case, you will need to remove the nut/bolt, and clean it for threadlocker to work. It is perfect for that thing you just boght that is already all put together, that you want to protect from vibration. Again, medium strength, not high strength, and is quite thin, so when applying beware it can run out the nozzle very quickly.
A**R
Its Loctite.. what can you say
Loctite is always a good product. This is the less tite fluid. Works great for that
N**L
Similar to blue, but oil tolerant. Good for rotary engine oil pressure regulator and oil bypass
Finally added the oil-tolerant version to my tool box. I did a test with a nut and bolt and it seems similar to blue in holding power (unscientific test, based solely on feel). I figured there is a spot or two that actually can make use of this in my RX8's rotary engine so I used it on the oil pressure regulator and oil bypass, so oil is what they do and where they live.
J**O
This is perfect for installed fasteners when disassembly is difficult. Works just like blue Loctite.
Used for retaining the small screws in eyeglasses.
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
A**A
Works as intended
A**R
good
Trustpilot
2 weeks ago
3 weeks ago