Here is link to the key way machining video kzfaq.info/get/bejne/e7SFa6Rz0K6YfnU.html

Would be cool to see some more variables tests. - Fine vs coarse threads. - Difference thread forms (acme, 60° V, square) - Different amounts of thread engagement

"Hard bolt. Soft nut." Words to live by.

I had been waiting years for this. Did not disappoint at all. Now I want to see you invent something to do with the massive one.

Thanks for taking the time to saw that big bolt and nut in half! Very interesting.

6:40 "The effect is the same, no matter the size" Words to live by.

I'm super impressed how accurate you guessed the pressure each time! especially the last one!!!!!

Very interesting how the M26 and M42 bolts start to get crushed and deforms before the threads let go!

Great test! I would have been interested to see what difference a finer thread would make.

Your videos as well as your accent never disappoint and just make my day!! Keep it up!!

This is one the the top ten channels on YT! I've learned so much about the physical limits of materials by watching these videos.

Try "Fine metric" bolts for comparison! They have more threads and are harder than a "regular 8.8" bolt/nut curious to see how much more weight they can take.

Great video. Find a way to do the same thing in tension (instead of compression). I have heard that the bolt will break before the threads. Since you did in compression, the bolt compressed and got thicker but won't break.

Would love to see this done on a 1"-8UNC bolting setup made out of SA193-B7 / SA194-2H as this size bolting is used everywhere in power gen, steel, chemical plants and oil refining.

The timing of this video is impeccable. I just broke an M8 yesterday. Seems to be a fatigue failure under tension. The bolt fractured at the top of the nut. The nut seems to be in perfect condition. The bolt’s thread also looks great except for the very ends where it fractured. It’s clear the bolt was simply ripped apart before much else could happen. Extrapolating from this video, the M8 would probably take 3 tons or so under those conditions.

This is some of the best content on this channel for a while. I love these kinds of stress tests. Great video, thanks!

I am a sales guy in a hardware store, mainly in the nuts and bolts section. This was a fascinating set of crush experiments!!

Interesting! Also pretty good guesses on the breaking force. As others, I'd like to see a coarse vs. fine thread comparison!

Thank you for posting this. As someone who knows very little about various fasteners, I have always wondered how strong nuts and bolts are, especially considering how often they are used in critical structures and safety equipment. This video was certainly eye-opening.

I love that you took the time to cut the Bolt in half. You have a true spirit of curiosity.

You outdid yourselves, that boom and the thread blow out was epic, and the cut away is especially neat to see

Would like to have seen the different between rolled and cut threads

Very interesting I've been a subscriber for about 3 years

6:39 ”The effect is the same, no matter the size”. That’s exactly what I needed to hear.

I love how (unintentionally?) HPC videos like these are. Lure them in with a funny/interesting concept, and then you make them think: what is 150 tonnes going to do to ___? What's it actually done?

Don't think I've ever seen a bolt with threads stripped right off. More interesting than I expected.

ask Kentucky Ballistics

This was very impressive in more ways than one. First, your estimates were almost perfect, and second, the pressure it takes to break the bolts/nuts. Awesome video!!

One thing thay makes a thread stronger is rarely discussed: extremely tight tolerances. There was a really interesting Japanese competition show called Supreme Skill and one of the episodes challenged different joining methods. The machining team discovered that square or acme threads actually were not the strongest, sharp standard threads where there were basically no tiny gaps between threaded parts, and as tight and small tolerances and as few gaps as possible, was the strongest.

This was really cool. I think it would be cool to see the difference between different grades of bolts of the same size. Grade 5 vs Grade 8, etc.

Typically, most bolts are roll formed threads, while nuts (and other internal threads) are cut. Roll formed threads are usually much tougher than similar cut threads per unit volume, but with a bigger diameter on the nut threads and a smaller diameter of the bolt threads, this tends to equal things out a bit. Really good demonstration! I would like to see testing between course and fine threads of the same size and grade fasteners, and also the differences in each of comparable size, thread, and grade fasteners in metric and standard.

I want to see a test with different common threads! Like M8 vs 5/16, metric coarse, metric fine, UNC and UNF. And also M10 vs 3/8! I mean, I could look this up, but watching your videos is much more fun! Also, it would be interesting to see if there's a difference between pushing and pulling!

The most educational video I've seen from this channel. I'd love to see another video of 1 bolt/nut size but show various different material grades so show how the thread sheer strength compares.

For years I've been wondering what you actually have the press for, so I'm definitely going to check that other video out.

Not going to lie I'm very impressed about how easy with 1 hand he picked up the big bolt

As a mechanical Engineer I found this absolutely fascinating! My guesses on failure point were fairly close as well.

Very interesting experiments. Your tests help inform me regarding the relative strength of things that I thought I knew well. Thank you for doing this and posting it. I like your accent, which is a big plus.

You know you're a guy when out of dozens of videos about everything under the sun, when you see a thumbnail of a hydraulic press with a nut and bolt positioned under it and the question, "How strong are bolt threads?" your reaction is... "I MUST know!"

This video was NUTS!

thanks for all this additional work (cutting bolt in half, using harder material bolts, adding slow motion, showing after math from different angles)

I have been watching this channel for years now, and this video caught my attention immediately. I've always wondered how strong these nuts and bolts really are because I use them on almost a daily basis when I go to work

Would be interested in seeing the shear stress capacity.

Weird timing, but I actually just saw a video a few days ago, and one thing they mentioned was that with nuts and bolts, something like 80-90% of the load stays in the first one or two threads.

3:01: Adds "guess" in post-production 3:22: Absolutely correct LOL! We love you guys!

This never gets old. I swear though, every time I take a sip of my coffee is the part when something snaps.

Nice! Few days ago I saw memorial bell (probably around +200 kg of bronze casting?) bolted to it's harness with few measly screws (M12 by the looks of it?) and was wandering how strong that type of fixture is. Apparently, A LOT stronger than it need to be!

7:43 literally stopped my heart for 3 seconds. was not expecting that

Another excellent test! Usable data for people building equipment that require high structural strength. Grade of the bolt and nut makes a huge difference on strength. I only use grade 8 or higher for most of what I build and on automotive applications. Not worth risking failures with lower grade fasteners. Also the thread tolerances are critical as well. Sloppy grade 8 can fail before a higher precision grade 5.That large bolt was huge! I've seen very few applications using bolts that large on Rolling mills and heavy equipment.

I just went to a hardware store and was wondering how strong these were when I walked past them, good timing!

This was excellent, and produced a lot of relevant information.

Bro you guys are nuts I love it

I see that you very quickly changed the title of this video, from the time I got a notification about it a few hours ago, until now, to make it less likely to be taken out of context... I would suppose that the words "HUGE Nuts & Bolts" as was originally in the title, was probably already getting WAY too many laughs and perverted comments, LOL! Great video as usual though, this kind of test has to be helpful for something or some industry! I would be curious to know the follwing: 1. How the same kinds of bolts fared under stretching instead of compression, because that is how they're actually usually stressed IRL. 2. Differences between different hardness grades of bolts/nuts. 3. Differences between different thread pitches and types If you also mentioned some typical uses for these bolts, it would be really cool info to know too! Like having bolts that were used for the very bottom structural foundations of tall skyscraper buildings, the mounting bases of extremely tall (100 meter plus tall) radio, cellphone, microwave, etc. towers, the mounting bases of extremely tall utility power line poles, like the kind that go cross country and directly out of power plants, also the kind used for the mounting bases of wind farm wind generator towers, very large bridges, epecially the large suspension types, the largest bolts that help hold together the very largest ships and cargo barges, etc... At least some of THOSE types of bolts above have to be some of the largest and strongest ones in the world! BTW, what is that one very largest bolt that you have there, (the black one that you didn't even attempt to crush), what is that one from, or what is it intended to be used for/on?

Every time I watch these videos, I think to myself, I need a 150 metric ton hydraulic press. Not for any practical application, just to smash things. Maybe some paper embossing, and converting 3D prints to 2D. Our workshop is already full, so it would have to go into our living room. That seems like a reasonable place to put it.

I know I'd love to see the work videos! I like how precise machine work is.

"I think that we're not able to break this..." You're both really awesome, love your content 😎😎🔥🔥👏👏👍👍✅✅

The slow motion audio of the big bolt shattering was epic!

There are a lot of imitators trying to steal your thunder, but you're the man, man. 👍

I’ve always read that fine threads are stronger than a comparable bolt with course threads. If you get a chance, that would be interesting to see.

Would love to see a fine vs. course thread comparison. Loved this press test on these bolts.

I haven’t tuned in for a while. I miss your destructive style. Plus your English has improved. Thanks for being here.

Very interesting demo..great to see many opinions. Provokes really good engineering discussions

Because of the size of the thread, especially on the M16, I would have guessed it could take not even a tonne of pressure... Almost 13 tonnes is incredible.

This information is surprisingly useful, especially to a lay person like myself. Gives a good idea what these sizes can handle.

You both put a lot of work into this channel and we all appreciate it. I’m sure they’re expensive to make too. Your videos are always great!

You can see Lauri getting better and better at his guessing 👌 This was really fun thanks for thr video

Great video as usual! Very interesting to watch! I would suppose that this kind of test and resulting info/failure data, has to be helpful for something or some industry out there! I would be curious to know the follwing: 1. How the same kinds of bolts fared under stretching instead of compression, because that is how they're actually usually stressed IRL. 2. Differences between different hardness grades of bolts/nuts, within the same diameter 3. Differences between different thread pitches and types, within the same diameter If you also mentioned some typical uses for these bolts, it would be really cool info to know too!... I would really love to see a video of stress test comparing the bolts that are used for the very bottom structural foundations of tall skyscraper buildings, the mounting bases of extremely tall (100 meter plus tall) radio, cellphone, microwave, etc. towers, the mounting bases of extremely tall utility power line poles, like the kind that go cross country and directly out of power plants, also the kind used for the mounting bases of wind farm wind generator towers, very large bridges, epecially the large suspension types, the largest bolts that help hold together the very largest ships and cargo barges, etc... At least some of THOSE types of bolts mentioned above have to be some of the largest and strongest ones in the world, I would suppose! BTW, what is that one very largest bolt that you have there, (the black one that you didn't even attempt to crush), what is that one from, or what is it intended to be used for or on?

would like to see 3d printed nuts tested, great entertaining video!!!

Before I watch, just want to let you know I work with commercial hvac water piping and equipment I know bolts from 2in to 3/8inch nuts and rod. This is a very neat experiment

Just found ur channel I grew up in my family’s Machine shop watching stuff like this

Very Interesting to see how the fasteners failed. I would have thought the nut threads would have failed as well, if they are both the same grade or hardness. Your commentary always makes me laugh. Thanks for the fun and educational videos. I really appreciate them.

When that M42 broke and the threads rocketed up around the shank, this was my *literal* face until you came over and picked it up: 😮 But, as shocking as it was to see that, in even more surprised to see that the nut threads were intact... 😳 Which now it begs an answer of whether that was the same failure mode on all the smaller bolts, or did they have some nuts that failed, too? OR if that test was a one-off, and redoing the test with the same M42s would have different results... 🤔 Either way, that one nut deserves its halves to be mounted on a plaque, with the title: _"Pritty Got Damn Strongk!"_

"It all happened fast but I think the force sensor had enough time to think about it" Thats a true Engineer, Empowering Inanimate Objects and talking about them as equals. No Judgement. LOL

Fix my driver slice, learnt how an atomic clock works, seen why theres bridge that needs to bounce and now I've seen a hydraulic press destroy a few nuts and bolts. Thank you to today's KZfaq algorithm

Really depends on the material and the rating. There are huge differences in quality within the same size and configuration of nut and bolt

Really good video, I’m just curious now what’s stronger metric bolts or standard, fine thread or corse, besides grade 5 and 8 bolts.

That last one you sliced in two was amazing.

LOL 😂 I wasn’t even watching at the moment, cutting an onion for soup... started cracking up laughing at this while also crying from the onion!!! 1:56

7:47 Really, really needed a headphone warning there. I now have tinnitus and I think I pulled a muscle jumping. I would be curious to see what happens with the same threads but on a longer (or wider depending on how you look at it) nut so that it's got more interlocking threads. Interesting video anyway.

These videos are always oddly satisfying. What amazes me is how, after all this time and so many videos, there are still so many things to (ethically) crush.

"SAY hello to my LITTLE bolt"(he pulls out BOLTZILLA)...LOL

This is a cool test. You should try different thread pitches and see what happens.

7:45 omg that scared the shit out of me. I had my volume WAYYYY too high

As an engineer I find this highly interesting, can you do smaller ones say m8 up to where you started

I've heard of explosive bolts before, but never figured on this. Nicely done.

This video wasn't only fun to watch, it was pretty interesting too.

i can only imagine how much those huge bolts cost.

Nice video :) I was taught that bolts should be designed to withstand sheer stresses if possible, and as a last resort in tensile/compressive situations. They are a lot stronger in sheer, and the failure tends to happen in the surrounding material, not the bolt. They are also less sensitive to tightening procedures that way, which are a big source of quality control problems. Could be cool to see some sheer tests with different thickness of plate :)

Your reaction at 7:48 was my exact reaction! I paused it at the slowmo to write this.... wtf?! LOL

I was laughing so hard when the last one exploded! You are an expert at predicting the failure point

Good 👍

When it comes to investing, nothing pays off more than educating yourself with the right information from the right source. That's how you get rich.

You should add a decibel meter as well, seems pretty damn loud that last one.

I wondering pushing or pulling makes any difference 🤔 especially with torque to yield bolts

Congrats to everyone who is early And who found this comment 👏 ❤...

Possibly the most interesting press video yet.

It's not a real HPC video unless something explodes (or at least sounds like it). And you delivered once again. :) My favorite is still the exploding paper...

4:30 “just like extra level of safeness” Cant go wrong there. 🤣🤣🤣🤣🤣🤣

7:46 SNAP, just like brass cylinder broke, and flew through the window.

this channel is what i see in midnights

I think M42 broke like that because hole was too big, bottom edge grabbed nut near outside edge, bent nut outward on bottom side and pinched top side. Yessss! Why don't you just bandsaw that largest bolt a little shorter so it fits? Love your show!