Permatex 25210 High Strength Removable Threadlocker Orange Liquid, 10 ml

BEWAREUsed this on a bunch of M4 button head socket cap screws in a build with 2020 extrusions and drawer slides for a vehicle - worked great, no rattles, easy to use, etc…However - I’m now switching out the slides to something stronger, something I didn’t anticipate needing to do, and it’s been brutal. The M4 screws have a 2.5mm hex head, and so far it’s been impossible to get the proper amount of torque on the screws before stripping them. The only way I’ve been able to get them out successfully so far is by heating each individual screw up with a small butane torch until it gets to around 250° F, then applying strong constant pressure to turn them - this method is 5 for 5 at this point, and now I’m out of butane.What have I learned? Using blue on these M4’s would have ended up saving me what I’m estimating to be 4-6 hours of work in the end. Orange is awesome for an M8 or bigger, maybe an M6, but not for small screws where I can’t get the needed torque.

I use it on nuts and bolts on my tree stump grinder. Very rare that anything comes loose since I’ve started using this product

It's a relatively new product that is stronger than blue but easier to remove than red.

This is an essential for high vibration machines. In my case, in my past I've had parts vibrate loose on my ratty-old harley. A few drops of this does a GREAT job of keeping hardware where it's supposed to be. No more mirrors falling off the handlebars while going down the highway!

Thread lock, so far I have only used four to five drops, I’d shake the bottle before use seemed light, so I shined a brute lite on the bottle and there was only , not even quarter of the bottle, , I like the stuff but am glad I only have small job to do, I don’t have time to send it back

This is that perfect middle between the removable locktite and permanent. It works like a permanent, but if you need it to, it'll let go without tearing stuff up or making you want to throw a breaker bar. Holds up good, haven't had any issues with it. I haven't used it for anything needing over 100ft-lbs of torque, but everything else has been fine.Gave it 3-stars for "easy to remove" because...on one hand it shouldn't be easy to remove, but on the other hand for those wondering about getting it off stuff they've used it on, it's probably about as easy as removable locktite.Only gripe I have is I wish the cap had some wings or a square shape or something that would make it easier to open with one hand. As it is, it can be a bit frustrating to open up if you're in the middle of holding a part or a set of bolts.

Works great

Great high strength thread locking fasteners to prevent loosen during use like motorcycles. It is specified in many motorcycle manufacture manual for this type of thread locker which I use on the brake disc on my motorcycle. It is strong enough to be "red" thread locker but without need for heat to release, just normal hand tools.