

🔧 Lock it down, loosen it up — the pro’s choice for precision fastening!
Loctite 38653 222 Purple Thread Locker is a low-strength, medium-temperature adhesive designed for fasteners up to 6 mm. Trusted by professionals and OEMs, it provides reliable vibration resistance and non-corrosive protection while allowing easy disassembly with hand tools. Quick-setting in 20 minutes and fully cured in 24 hours, it’s perfect for automotive and small machinery applications requiring secure yet adjustable fastening.









| ASIN | B0002KKTT0 |
| Best Sellers Rank | #2,091 in Automotive ( See Top 100 in Automotive ) #8 in Thread Lock Sealers |
| Brand | Loctite |
| Color | Purple |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,987) |
| Date First Available | July 7, 2004 |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340386532 |
| Is Discontinued By Manufacturer | No |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Volume | 6 Milliliters |
| Item Weight | 0.01 ounces |
| Item model number | 38653 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 555339 |
| Material | Aluminum,Brass,Stainless |
| Model | Loctite 555339 Threadlocker 222 Low Strength Tube, Purple, 6-ml |
| Number of Pieces | 1 |
| OEM Part Number | 38653 |
| Package Information | Tube |
| Product Dimensions | 6.5 x 3.81 x 1.2 inches |
| Special Feature | Strong |
| Special Features | Strong |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340386532 |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |
T**M
Great product for working on RC cars and small machinery
I wish I knew this product existed a couple of years ago. I have been using the blue Loctite on my RC cars and often times fine that the blue still has too much holding strength for small fasteners. This purple formula works absolutely perfect on M3 and M4 set screws that do not require a more permanent fastening solution That you often get from the blue or red. I find the purple Loctite product to be superior for my needs and I highly recommend it for anyone who works on RC cars or small hobby items that may frequently need to be disassembled repaired and reassembled. Highly recommend this product. I
A**.
Reliable Threadlocker for Securing Aluminum Parts
he Loctite 222 Threadlocker for Automotive (High-Temperature, Low-Strength, Anaerobic, One-Piece Assembly, Non-Corrosive, Purple, 6 ml Tube) has proven to be indispensable for my projects, especially when it comes to securing screws on aluminum parts. Given that many stores nearby do not carry this specific Loctite product, I was pleased to find it online. As with all Loctite products, it worked exactly as described. The low-strength formula is perfect for applications where easy disassembly is required, yet it still provides enough hold to keep screws securely in place under high temperatures and vibrations. The non-corrosive nature of the threadlocker also ensures that it does not damage the metal surfaces, maintaining the integrity of the components. For anyone needing a reliable threadlocker for automotive applications, especially on aluminum parts, I highly recommend the Loctite 222. It’s a trustworthy and effective solution for locking and sealing screws. 🚗🔩🛠️
B**Y
Its Loctite, its dependable.
Low stress strength worked well on small engine project since I had to assemble/disassemble it many times.
T**R
My new color is Purple Loctite.
Purple is the only way to go. Great product
D**R
Good stuff
I use a lot of the Loctite 242 variant for various projects and thought I would get this variant for a 3D printer build I am doing. So far it's working great and I will purchase more. I was going to purchase a large bottle of this but it seems there are a lot of phony versions of this on Amazon in the large size, so I purchased the small size and it seems to be the real deal and seems to work like it's supposed to.
A**I
perfect for low adhesion applications
Not as popular as 243, which will certainly prevent screws from coming undone and make a semi-permanent bond. On the other hand, 222 is relatively low adhesion, but nevertheless provides a coating. Now, if you have ever come back to a screw years later and tried to undo it, only to find it has seized up, then this is the product for you. Just a drop when putting in the screws provides a thin coating that will prevent the screw from seizing up and make it a pleasure to remove when the time comes. Additionally, it provides a thin coating on the threads of the screws to provide rust inhibition. I use this on any screws that may be exposed to humidity or significant temperature changes that can result in them seizing up to prevent problems in the future! Try it yourself now and thank me later!
T**N
This is great stuff!!
they say low strength but it works perfect for a lock washer type of grip. I used this stuff for years in the 70's. I'm using it again because of its inherent ability to work just right.
V**.
Loose nuts
Nuts go on and stay tight. But easy to remove if (like me) make a mistake or make changes. Now my scopes stay in place and hold even under hard use pig hunting. I will never go back to other products I’ve tried.
S**N
Works great as always
F**1
Very effective on the adjustment screws on a watch strap
H**U
Bought this to use as spoke prep for a bicycle wheel build. This product is essentially bike spoke lubricant and is much cheaper than ParkTool spoke prep. It allows for screws to be adjusted while also reducing nuts from coming loose.
B**2
Genuine and quality product. Works as it should. Couldn’t find any loctite locally other than made in China ones. I’m glad Amazon stock this!
E**Z
Tenía la duda si me llegaría seco o viejo el producto pero, no tengo ninguna queja, todo bien.
Trustpilot
3 weeks ago
1 month ago