

🟢 Lock it tight, last for life — the pro’s secret weapon!
ESKONKE Retaining Compound Green 648 is a high-strength anaerobic adhesive designed for smooth, unthreaded cylindrical metal assemblies. With a tensile strength of 4480 PSI, it locks components securely, fills gaps to reduce precision demands, and protects against corrosion and wear. Its green formula cures fully in 24 hours, providing durable, water-resistant bonding ideal for industrial and mechanical applications.








| ASIN | B0CHWFVV2Q |
| Best Sellers Rank | #755 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Retaining Compounds |
| Brand | ESKONKE |
| Brand Name | ESKONKE |
| Color | Green |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 2,135 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | Bottle |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Manufacturer | ESKONKE |
| Material | Polyethylene glycol 200 dimethacrylate(MPL) 60~65% / Polyethylene glycol monooleate 25~30% |
| Material Type | Polyethylene glycol 200 dimethacrylate(MPL) 60~65% / Polyethylene glycol monooleate 25~30% |
| Model | 648 |
| Other Special Features of the Product | green retaining 648, loc tite green 648, retaining compound 648, sleeve lock tight 648, sleeve retainer 648 |
| Special Feature | green retaining 648, loc tite green 648, retaining compound 648, sleeve lock tight 648, sleeve retainer 648 Special Feature green retaining 648, loc tite green 648, retaining compound 648, sleeve lock tight 648, sleeve retainer 648 See more |
| Specific Uses For Product | Evenly distribute loads and stresses, Fill gaps between components, Isolate oxygen and prolong product life, Lock components to prevent loosening, Prevent component abrasion & corrosion Specific Uses For Product Evenly distribute loads and stresses, Fill gaps between components, Isolate oxygen and prolong product life, Lock components to prevent loosening, Prevent component abrasion & corrosion See more |
| Tensile Strength | 4480 Pounds Per Square Inch |
| UPC | 788462036316 |
| Unit Count | 1.69 Fluid Ounces |
| Viscosity | 500 Centipoise |
| Volume | 1.69 Fluid Ounces |
| Water Resistance Level | Water Resistant |
K**H
Does what you need on smaller threads.
The first thing to understand is that this is non-permanent and designed to prevent breaking smaller threaded parts when removing without heat or impact. It can be messy if you use too much, but that’s on you! The bottle is a good design. Store it upright to prevent leaks. Shake well!
J**R
Keeps my leg adjustments tight
Great thread lock! Use it on my Prosthetic Leg after adjustments. A gotta have item!
W**F
Good product
Good price and nice product
G**H
Maybe not for Space-X use, but works for me fine.
I always have a bottle of 243 and 680 on hand and use them all the time on all sorts of stuff that needs attention. Yes, the bottle is supposed to be "half full" , the air space is to prevent it from hardening in the bottle. It is sold by weight, not volume and hardens in the absence of oxygen. The application nozzle is opened by pulling up on the white ring at the base, and useful for preventing accidental spills. Not much fun finding the tipped over bottle somewhere with half the liquid hardened underneath it IFYKYK.... Slightly more viscous than the name brand which I think is nice, so I get a better chance of installing the fastener in difficult locations without it dripping off. Works the same, looks the same, smells the same, and hardens the same, at a fraction of the cost.
D**C
Seems To Work
This thread locker seems to work, however I found it a little tricky and did not see any info on how to actually open the bottle ... first there's the main cap, ok just pop that off it is tight at first but simple enough right? well yes and no, as with most you have to pierce the nozzle to get the liquid to flow so I did that and it still was not dispensing any liquid. NOTE: Just in case others are unsure and have the same issue I did then the following info is for you. Then I noticed there's a spot that sticks out lower on the nozzle this is a secondary seal that you must pull up on to unlock it (See Pic), while this is great it would be nice if the info to open the bottle was included in the package. So unless I somehow missed it I did not see any ... Anyway with all that sorted the product works as it should and seems to hold tight and sets quickly, but because of the lack of proper instructions I am docking a star. O and yes as others have mentioned the bottle is half full. I checked the weight of the product and it is around 50g minus the weight of the bottle, so you are getting what they say your getting, its just in a large one size fits all bottle that they must use for all there products which in my opin is just ridiculous and one of the reasons for many bad reviews, they should really just use a smaller bottle for a smaller amount, but because you only use a drop or 2 at a time this amount is still quite a lot, and should still last a very long time. Yes I can recommend this product, as it does seem like a decent value, just know it will come in an oversize bottle, but they are not shorting you on the actual product.
L**Y
Useful for securing screws and yet soft enough to rework later.
My application is for my RC hobby, both builds and maintenance. I’ve only used it on a few parts so far, but so far it is working exactly as I hoped, a quick and secure connection that can also be reworked without stripping anything out. There’s plenty in the bottle, half is air which keeps it liquid. Once you get it into a threaded connection is begins to harden. Tip is a bit large for hitting tight spots but I use a sharp thin metal tip to guide small drops into tight locations. If you leave some on a surface it’s easy to wipe off.
H**.
Just saying!
Did a great job on a metal frame for a Queen size bed.... Have had it ( the frame), for a while. Not going to bad mouth any other brands. Bought this to see if it could help even with the wear and tear of the past. Had previously used a popular brand but for what ever reason it failed immediately, (in a week or so.. Had waited to give it time to set and cure) . The Eskonse thread blocker Blue 234 actually has held and I even gave it the week to cure just like the one I havd been using previously. This thread locker worked after the same curing time, on the same frame and is still working 2 weeks later.
T**L
Wants on a screw it can be used several times
I like this so much better than Loctite. It doesn’t dry into a hard plastic. Because of its fibrous consistency, it actually stays pliable and you don’t have to reapply it every time you remove a screw. Big time saver. Stupid me forgot that I had already ordered one so now I have 2 ounces of it enough to last a lifetime.
Trustpilot
2 weeks ago
3 days ago