How To Properly Apply Threadlocker

We have noticed the bolts failing on some of the machines we have built (such as the CNC and Plastic Injection Machine), and after further investigation we found the issue to be in the way we applied the Loctite Threadlocker.

We made a quick video to demonstrate how to properly apply the thread locking fluid (thread locker) to threads in order to save you the trouble of failing screws in your builds.

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[GeneralChangFromDanang]

Ha, joke's on you. My holes always end up oversized as I'm a shit machinist so no airtight blind holes for me.

[sarganis]

This minute was one of the most useful minutes I've ever spent on Youtube.
Good job!

[DennisGentry]

I wouldn't do this into a blind hole on an engine casting unless I knew it was a loose fit. It's surprisingly easy to crack the casting when you torque the bolt into the blind hole with uncompressible liquid below it. (This is one reason to always blow out holes with compressed air before assembly.). On the other hand, I can't think of engine casting holes that call for threadlocker, usually just a specified torque, so it probably won't matter.

[drewgossage]

The loctite rep always said to do the same.
But this is a fantastic visual representation of why, that i haven't seen before.
Thanks for sharing👍👍

[Ktron]

Fair enough unless the threads a tight tolerance, you'd end up hydraulicing the hole, common on engine bolts when there's oil in a hole it cracks the casing

[chadkulikowsky]

We at my place of busniness have devoloped a better version on threadlock. We call it CROSSTHREAD.

[williamweatherall]

I like how short your videos are. Like, just the perfect length for what you are trying to show

[mortarriding]

Thank you algorithm. I was just about to do some threadlocking.

[JB-pbxv]

This actually answers my question better then allot of the videos testing these. Because the difference actually depends on whether you have an open or closed / blind hole that you're screwing into. As to how the thread locker will apply..

My other question which I think would help in these closed ended holes as well. Is whether you should allow the Loctite to cure for awhile, before driving the screw in..

[mikegLXIVMM]

Another tip: keep thread locker away from acrylics.
Even a small amount will destroy the acrylics.

[GBWM_CNC]

Didn't know that. Waiting for more from you guys!

[TheMadMagician]

Hmmm, such a simple tip but so worthwhile. Cheers.

[johntechwriter]

Very informative, and just the right length. Top marks.

[far]

Lmao 🤣 I’ve always know this I just thought I was wrong 🤣🤣. This the reason a lot Bmw cylinder heads lift!! Service manual instructions lol

[chemicalcorrosion]

Several years ago I used thread locker on an Anet acrylic 3D printer build. The entire thing CRUMBLED due to the thread locker affecting the acrylic.

[durimmiziraj]

Apply it to the bolt, and let it dry. The technique is good enough for car manufacturers.

[babblo]

Everybody is gangsta until your bolt goes upside down.

[ToeCutter]

betting this stuff is probably different from the pre-coated bolts you get with some fasteners that have a ring of blue loc-tite on them otherwise you could just go the route of putting it on the bolt as such, letting it cure for a day or two then using it when you need to and the friction creates the bond when you run the bolt into a threaded fixture.

[shroey]

I dont understand. What's a blind hole?

[nickhu]

I guess when I apply this technique on thru-holes, it has the reverse effect: ..and even worse I got all the threadlocker on my shoe :-) Just kidding, great video!