Loctite 29513 Blue 246 High Temperature Medium Strength Thread Locker, 450 degrees F Maximum Temperature, 10 mL Bottle

Expensive but works great.

I used this on a remote control airplane engine muffler that I temperature check and the temp was within spec for this product but the muffler constantly came loose.

High temperature blue Loctite. Why they need to make so many version is bewildering, and the descriptions are vague and overlapping. There must be a more specific use for each product but they don’t really tell you what it is.

Worked great for me

Great to use in transmission and differential plugs.

Just what I wanted.

This stuff works great for securing threaded fasteners of accessories on firearms, like scopes, bi-pods, etc. Fasteners will not loosen from the shock, but It can still be removed if you need to.

Hard to find this type. Ok price.

Worked very well for my application, seating the set screws for a rifle gas block. Part has not moved a bit since installation. Bought this item because it has a higher temperature rating than standard blue Loctite. Bottle is small thats true, but likely is enough for hundreds of applications if used properly.

Applied to gas block set screws. Holding tight hundreds of rounds later.