Hello, you did a nice job with the experiment. However, the premise of the experiment is flawed. Lock washers/nuts are not intended to resist loosening torque. They are intended to resist vibrations. A better test would be to repeat what you did, and then place the entire test setup on a vibratory table. See how many minutes/hours/days it takes for each type to loosen.
@@HacksbyDad please consider changing the title to something else because novices will hurt themselves with plain nuts thinking they are better than lock washers or nylon nuts. I have a rooftop tent and use combination of lock washers and nylon…on top of that i tie down and provide rubber bases to prevent vibration . Plain nuts would come off in just a short drive…extremely unsafe.
The loss of preload was most likely due to the washers or nut/bolt shaving away with the vibrations. You could counteract this with using Conical spring washers with the nylocks. I always reach for cone lock or nylocks where there is vibrations or movement.
I've read test where the tooth washers helped (although those may have been external) but certainly not what happened here. The rest wasn't really a surprise, the obvious reason I like Nylon Nuts (Nyloc) is what you showed here, even if they do loosen they can't just vibrate off the rest of the way.
Yeah… I read how poorly the split lock washers work and decided to do my own small-scale tests. I hope to do vibration tests at some point. Thanks for watching the video and commenting. 😎
It was smart to consider the weight of the scale. Don't forget that the torque wrench also has weight that applies a torque. This torque should be added to each measurement of applied torque. While true that the weight of the wrench applies both while tightening and loosening, it would be a mistake to ignore it. For example, if the torque wrench were much heavier, then its weight alone would apply enough torque to tighten and loosen the nuts. To make the measurements even more accurate, the direction of applied force should be very close to 90 degrees from the torque wrench, instead of vertically. This angle is a larger source of error than there would be from wrench's and scale's weights no longer being parallel to the applied force. If you can somehow adjust the rotation of the nuts/bolts to orient the torque wrench horizontally, then the applied force and weight can both be be vertical. Otherwise, the deviation angle for hexagonal nuts would randomly vary between -30 to +30 degrees.
Thanks for taking the time and effort to do this. I'm restoring a classic car and I'm constantly having to decide what nut/ washer combo I should use for various applications. What I'd really like to see is this same test but using the same vibration method you used for the internal toothed washer video you made. I'd particularly like to see the difference between the split washer and the nylon lock nuts.
@@HacksbyDad That's great news! I can't wait to see the results. Thanks in advance for doing that. I've looked all over RUclips and apart from videos by companies that make certain fasteners, there are no unbiased videos of a multi faster-type vibration test.
Thanks for the very helpful information. I have pedestals for the seats on my aluminum jon boat and I am having trouble keeping the base of the pedestals tight against the sheet metal benches. I have the pedestals attached to the sheet metal benches with toggle/molly bolts. When I am on the lake and suddenly my seat wobbles, it is a bit unnerving. The pedestals loosen while boating. I'm impressed with your very engineering-type approach to your study.
Locknuts are used to mitigate the loosening of fasteners due to vibration. They bite into the fastener to help hold it in place. So, this isn't a good test of the locknuts' purpose.
Not sure why you ask this. The tightening torque is to stretch the bolt up the inclined plane of the thread. Therefore the bolt is what sets the required torque.
@@Sundiale Hmm, I'm not sure either. Maybe not torque, but how much pressure is applied down from the nut/washer. Like a lock nut can be applying no pressure while still locked on?
Nice work! I would've loved to see blue loc-tite included. Also, if there was some sort of vibration stress over various time periods and what it takes to remove nuts after that. Im surprised the split washer results but the test doesn't show what they do without giving the regular nut a chance to wiggle free. Easy to armchair quarterback, cool vid though! If you ever re-shoot, adding the vibration or dynamic movement variable would give better real life results
Thanks! I wanted to do a vibration test, but couldn't think of a way to do it. I"m still trying to come up with a way to make a DIY junker machine. I posted two videos comparing red and blue loctite. 😎
It was a compromise. The first nut was used to hold the bolt in place. I didn’t want the bolt to spin before the 2nd nut released. Welding the bolt in place would have been ideal but I don’t have a welding machine. 😎
Here's a follow-up vibration test... ruclips.net/video/4H-HOHZ3chA/видео.html
😎
Please start your video with the answer and then elaborate. In my experience, you’ll get more likes and subscribers that way.
@@christosvolikakis1523 Thanks! I"m an old dog trying to learn new tricks. 😎
Hello, you did a nice job with the experiment. However, the premise of the experiment is flawed. Lock washers/nuts are not intended to resist loosening torque. They are intended to resist vibrations. A better test would be to repeat what you did, and then place the entire test setup on a vibratory table. See how many minutes/hours/days it takes for each type to loosen.
I see that you found my follow-up experiment. LOL
Uhhh... Isn't the point of lock washers and lock nuts to prevent loosening from vibration? What is the purpose of this test?
Good question! LOL
A vibration test is part 2... I'm working on a diy junker vibration tester.
😎
yea i was wondering the same thing
Good effort but not using vibration test defeats the purpose of locking strength
Yeah… I don’t have access to a junker machine to do a vibration test. Haven’t come up with a DIY version… yet. 😁
@@HacksbyDad please consider changing the title to something else because novices will hurt themselves with plain nuts thinking they are better than lock washers or nylon nuts. I have a rooftop tent and use combination of lock washers and nylon…on top of that i tie down and provide rubber bases to prevent vibration . Plain nuts would come off in just a short drive…extremely unsafe.
The loss of preload was most likely due to the washers or nut/bolt shaving away with the vibrations. You could counteract this with using Conical spring washers with the nylocks.
I always reach for cone lock or nylocks where there is vibrations or movement.
Fascinating and important test - thank you! At least the nylon locknut serves a purpose (even if not at the initial loosening).
Thanks!
I've read test where the tooth washers helped (although those may have been external) but certainly not what happened here. The rest wasn't really a surprise, the obvious reason I like Nylon Nuts (Nyloc) is what you showed here, even if they do loosen they can't just vibrate off the rest of the way.
Yeah… I read how poorly the split lock washers work and decided to do my own small-scale tests. I hope to do vibration tests at some point. Thanks for watching the video and commenting.
😎
It was smart to consider the weight of the scale. Don't forget that the torque wrench also has weight that applies a torque. This torque should be added to each measurement of applied torque. While true that the weight of the wrench applies both while tightening and loosening, it would be a mistake to ignore it. For example, if the torque wrench were much heavier, then its weight alone would apply enough torque to tighten and loosen the nuts.
To make the measurements even more accurate, the direction of applied force should be very close to 90 degrees from the torque wrench, instead of vertically. This angle is a larger source of error than there would be from wrench's and scale's weights no longer being parallel to the applied force. If you can somehow adjust the rotation of the nuts/bolts to orient the torque wrench horizontally, then the applied force and weight can both be be vertical. Otherwise, the deviation angle for hexagonal nuts would randomly vary between -30 to +30 degrees.
Thanks for taking the time and effort to do this. I'm restoring a classic car and I'm constantly having to decide what nut/ washer combo I should use for various applications. What I'd really like to see is this same test but using the same vibration method you used for the internal toothed washer video you made. I'd particularly like to see the difference between the split washer and the nylon lock nuts.
Thanks. The complete vibration test video will be visible tomorrow morning. It was a fun test to figure out and conduct. Hope you like it. 😎
@@HacksbyDad That's great news! I can't wait to see the results. Thanks in advance for doing that. I've looked all over RUclips and apart from videos by companies that make certain fasteners, there are no unbiased videos of a multi faster-type vibration test.
Thanks for the very helpful information. I have pedestals for the seats on my aluminum jon boat and I am having trouble keeping the base of the pedestals tight against the sheet metal benches. I have the pedestals attached to the sheet metal benches with toggle/molly bolts. When I am on the lake and suddenly my seat wobbles, it is a bit unnerving. The pedestals loosen while boating. I'm impressed with your very engineering-type approach to your study.
Thanks! I appreciate the feedback.
Have you tried removable blue Loctite? It might provide a better hold.
😎
Locknuts are used to mitigate the loosening of fasteners due to vibration. They bite into the fastener to help hold it in place. So, this isn't a good test of the locknuts' purpose.
Thanks... here's a follow-up video... ruclips.net/video/4H-HOHZ3chA/видео.html
😎
I thought I knew some things about tools until I watch a video from Hacks By Dad then I realized I know very little. Thanks for all you give us Dad.
Thanks for the kind words! I really appreciate the feedback.
😎
I appreciate the attention to detail, great video!
Thanks! 😎
Great video! Surprising!
I wonder if the lock features would allow you to apply more torque when screwing in the bolts
Not sure why you ask this. The tightening torque is to stretch the bolt up the inclined plane of the thread. Therefore the bolt is what sets the required torque.
@@Sundiale Hmm, I'm not sure either. Maybe not torque, but how much pressure is applied down from the nut/washer. Like a lock nut can be applying no pressure while still locked on?
Excellent info thank you!
Nice work! I would've loved to see blue loc-tite included. Also, if there was some sort of vibration stress over various time periods and what it takes to remove nuts after that.
Im surprised the split washer results but the test doesn't show what they do without giving the regular nut a chance to wiggle free.
Easy to armchair quarterback, cool vid though! If you ever re-shoot, adding the vibration or dynamic movement variable would give better real life results
Thanks!
I wanted to do a vibration test, but couldn't think of a way to do it. I"m still trying to come up with a way to make a DIY junker machine.
I posted two videos comparing red and blue loctite.
😎
@@HacksbyDad awesome, would love to see those videos!
@@Menelik.videos Test #1... ruclips.net/video/CTCcLQLcvac/видео.html
Test #2... ruclips.net/video/6J0fpMMaRnc/видео.html
😎
@@HacksbyDad Thank you for sending me the links. I appreciate it.
@@Menelik.videos 👍
Yeah, good content. I would say as thorough as ProjectFarms content. Keep up the good work!
Thanks!
I'm small potatoes... and will keep plugging away. 😎
Awesome, thanks a million for this
You’re welcome. Thanks for watching the video. 😎
Thanks!
You’re welcome. 😎
SPRING WASHER ACTS AS SHOCK ABSORBERS IN A MOVING CAR SLOWDOWN VIBRATIONS. I'M RIGHT?
what are you doing ???
Why did you use them against a nut? That's not how they will be used!
It was a compromise. The first nut was used to hold the bolt in place. I didn’t want the bolt to spin before the 2nd nut released. Welding the bolt in place would have been ideal but I don’t have a welding machine.
😎
None, the only ones that holds is Nord-lock.
What is the point of this test? You didn't test what the lock washers were designed for (vibration)
Here's the vibration test... ruclips.net/video/4H-HOHZ3chA/видео.html
😎
Locknut
👍
This is not providing the accurate results that you’re seeking. It’s really all about vibration.
Here's the vibration test...ruclips.net/video/4H-HOHZ3chA/видео.html
😎
Thats not how those washers work dude.... pointless test....