LOCTITE 640 High-Strength Sleeve Retainer, High-Temperature, High-Stength, Anaerobic Adhesive, For Large Diameter Components, Active Metals | Green, 6 ml Tube (PN: 487235)

Its Loctite, it makes things get stuck. Perfect!

I used this to sleeve a steel tube, and then turn it down. It held on like weld. Just follow the directions.

It is the standard for a reason

Not something you can find at local home improvement or hardware store. I needed this for an RC helicopter pinion gear gluing to the motor shaft. The torque was enough to break high strength red Loctite 271, but this green 640 stuff hasnt broken yet.

its a great retainer for metal to metal contact. Would recommend and will buy again Thank you very much. RauL

This worked really well to secure my dipstick tube into the engine block.

Tried to use to secure a bushing in an output extension housing of a truck transmission. Old bushing was spinning in its bore. Supposed to be a press fit. Researched this problem and discovered this product. Followed directions. First cleaned and degreased housing and bushing mating surfaces with BrakeClean. Then applied the Loctite to both surfaces and installed the bushing with a twisting motion. Instructions state the product will set up in 1hr and fully cure after 24hrs. I had the assembly in my house at 72* and after 24hrs product was just as wet as when I installed it. Removed bushing and recleaned , not sure what to do now.

Like most loctite products, it worked like advertised, not cheap, but not Cheap..

If this doesnt hold you need to weld it.

Great product. A translucent green liquid that is strong but also light enough that it can wick into tiny cracks. Dries relatively clear and is barely noticeable. Starts to bond within minutes, but total cure time is about a day. Used this on a loose and jiggly metal part and its solid as a rock now.