Hands down the best, most concise explanation of this possible. It covered what I was trying to grasp even after reading through two articles from the search.
I'm trying to source bolts and such for my beloved project vehicle, and you just saved me hours upon hours of stress. The old shop manuals and parts lists didn't say the sizes I needed. Thank you.
I wish I would have watched this video before running 3 times to the big box store and buying a replacement bolt and nut to fix a chair and STILL not getting it right. Fourth time's a charm.
As an american I admit that the metric standard is more logical, however those tiny tiny numbers are for some reason a lot less easy to comprehend than 5 threads per inch or 20 threads per inch. I kinda love our bigger whole numbers. We need a common middle ground, where is our threads per cm?
Very informative, Thank you. I do have a question,, I am Veeeeryyy perplexed by a screw search I have encountered. Is any of this you spoke about, in relation to the #8-40 Hex head screw? 1st, it is like almost IMPOSSIBLE, to find the correct #8-40 screws I need, to mount a scope mount onto my rifle. I had already drilled and tapped the 4 holes for the #8-40 screws that came with the mount. However, the screws are a tad shorter than 1/4", and I need exactly 1/4" from under the head to tip. I had ordered some Fillister #8-40 1/4 screws that were Not 1/4 And, they were a small torx head, I returned them. I wish I could find this screw with a Hex 9/64" box head, as the originals. I feel I may need to get these in 3/8", and then cut to size. Perhaps You carry these? I am also looking to understand the differences here. Are the #8-40 screws the same as an M8-40 screw (if even that exists)? Is there even an equivalent for the #8-40 screw in the Metric world? I mean, one can ask, what is a #8-40 screw, in relation to SAE and Metric? Could you elaborate on this some, Please?
Is the Diameter the width from Peak to Peak of the threads? I get 5mm for peak to peak but 4mm for the end of the bolt without the threads... thank you.... SUPER GREAT VIDEO !!!! you've helped alot!!
Thanks very much. Is the imperial model screw compatible with the metric one? e.g. Is it possible to find a imperial model screw fits the metric model screw hole?
How is it possible to measure the metric pitch since the points (.4mm) are so small? It's difficult to measure the points even with a caliper. Is there any gauge on the market to do this?
Yes, since it's too small I've heard to measure 10mm and divide instead. For example, measure 10 mm and you get 15.....now divide.....15 ÷ 10 = 1.5, so its 1.5 mm.
Metric is more common worldwide but Imperial is the dominant system for the United States. The systems "coexist" in the sense that they are both in use. They are not easily interchangeable.
I think I just found my answer... Apparently: Size for size, a fine thread is stronger than a coarse thread. This is both in tension (because of the larger stress area) and shear (because of their larger minor diameter). Because of the smaller pitch, they allow finer adjustments in applications that need such a feature.
Bizarre... i been workin with bolts of all types for decades and never knew this and or its something not really talked about for some reason who knows why??? If you ask me this should be part of the 101.
That’s all fine and dandy there’s a bolt it’s down at the bottom of my battery how do I tell what size it is why isn’t it on the top instead of the metric tons of Paul
There are usually only two thread patterns for a given diameter: coarse and fine. For example, a 1/4” machine screw will have either 20 or 28 threads per inch. You can tell the difference just by looking at it.
Do you mean measure threads per inch? You would just use 1/2” or 1/4”. You could also just measure the diameter with a caliper. There are normally only two choices for pitch at a given diameter: coarse or fine. You can tell the difference by looking at it.
Well, #8-32 is the common thread pitch for a #8 machine screw or bolt. A #8 with 18 threads per inch would be very coarse, and I don't think it exists. The 1/2 inch is just how long the bolt is.
Dear Sir, the thread under the head to the full threaded length is a screw and not a bolt, under the head to a specified length(depending on bolt size)plain shank no thread to the thread is called a bolt, being an ex mechanic we know the difference incl other trades
If Guiness were still reputable, they would classify this video as the BEST 101 tutorial ever created.
Thank you!
Haha. I like that comment. Haven't started the video, but I'm expecting a good one now
Okay, I watched. It WAS good. 👍
No kidding straight to the point no bs
I wish every UA-cam video was like this. Straight to the point and no bullshit.
Well done!
Please like and subscribe and enable the notification bell. ;-)
AWESOME , explanation is STRAIGHT to the point. Clear as water. Thank you !!!!
Hands down the best, most concise explanation of this possible. It covered what I was trying to grasp even after reading through two articles from the search.
This explained it better than anyone ever could. I am now a bolt measuring teacher full time
I am in a Metric country (Australia) this is by far the best explanation.
damnnn this is gold no extra unecessary information its Crystal clear
This is the best, quickest, easiest, straight to the point tutorial on knwoing everything you need to know about screw sizes! 👏
I'm trying to source bolts and such for my beloved project vehicle, and you just saved me hours upon hours of stress. The old shop manuals and parts lists didn't say the sizes I needed.
Thank you.
You guys have the best videos on UA-cam for fixing cars. Great work. I really appreciate that you provide specs for torque.
Best explanation of any article, website, or video I've ever seen before! Thank you!
You're welcome! Thank you for your feedback.
I wish I would have watched this video before running 3 times to the big box store and buying a replacement bolt and nut to fix a chair and STILL not getting it right. Fourth time's a charm.
Thank you man. Short and brief explanation.
Thank you, straight to the point and the diagrams help explain it perfect
greatest and very helpful video man I never comment on videos but this got me, man, this one got me
Plain and simple explanation. The best. Thanks
best explanation on youtube, hands down!
This is exactly what I was looking for. Thanks a bunch!
That's what I am talking about. Straight to the point, great video sr!!
couldn't expect anymore from a tutorial video.
most simple and the quickest and most usefull
This video is gold. Thank you for the clear explanation.
You're welcome! Thank you for your feedback.
Thank you this video help me a lot especially dealing with general supplier
Thank you! That explained exactly what I needed to know.
Glad we could help! Thank you for your feedback.
Quick and to the point explanation. God Bless you sir.
Thank you for your feedback!
Incredibly helpful. Thank you!
As an american I admit that the metric standard is more logical, however those tiny tiny numbers are for some reason a lot less easy to comprehend than 5 threads per inch or 20 threads per inch. I kinda love our bigger whole numbers. We need a common middle ground, where is our threads per cm?
Thank you so much for this simple, yet effective explanation!
Excellent!! Straight way all explained my queries in short.. Keep making like this video. Thanks a lot!
Simple and to the point! Bravo 👏🙏👌
amazing video, straight to the point.
Nice, simple and informative! Thank you!
Brilliant clear explanation. Great vid!
The best and simple explanation. Thank you a lot!
simple and very easy to understand. Thank you for the video.
Excellent video, Brother-Man. Thanks.
Do I measure the diameter of the screw/bolt from the peaks or valleys of the threads?
Very well-explained!
Thanks for clearing up metric.
You're welcome! Thank you for your feedback.
Great explanation.
Excellent presentation
Very informative, Thank you. I do have a question,, I am Veeeeryyy perplexed by a screw search I have encountered. Is any of this you spoke about, in relation to the #8-40 Hex head screw? 1st, it is like almost IMPOSSIBLE, to find the correct #8-40 screws I need, to mount a scope mount onto my rifle. I had already drilled and tapped the 4 holes for the #8-40 screws that came with the mount. However, the screws are a tad shorter than 1/4", and I need exactly 1/4" from under the head to tip. I had ordered some Fillister #8-40 1/4 screws that were Not 1/4 And, they were a small torx head, I returned them. I wish I could find this screw with a Hex 9/64" box head, as the originals. I feel I may need to get these in 3/8", and then cut to size. Perhaps You carry these?
I am also looking to understand the differences here. Are the #8-40 screws the same as an M8-40 screw (if even that exists)? Is there even an equivalent for the #8-40 screw in the Metric world? I mean, one can ask, what is a #8-40 screw, in relation to SAE and Metric? Could you elaborate on this some, Please?
Best explanation ever.easy to understand
Thank you for your feedback!
Thank you so much. This is awesome. I just needed the info. ❤
Thank you for an illuminating video
Thanks for the clear and precise explanation !!!
Glad it was helpful!
Nice and clear. Thanks
Thumbs up buddy, crystal cleared.
Nicely explained!
Is the Diameter the width from Peak to Peak of the threads? I get 5mm for peak to peak but 4mm for the end of the bolt without the threads... thank you.... SUPER GREAT VIDEO !!!! you've helped alot!!
Diameter is measured Peak-to-Peak. So that fastener would be 5mm in diameter. Thank you for your feedback!
Thanks very much. Is the imperial model screw compatible with the metric one? e.g. Is it possible to find a imperial model screw fits the metric model screw hole?
Thank you for making this
This is why I love UA-cam.
Thank you that was very helpful.
thanks , clear explanation
Great video!! Cheers
Very concise!
Though, I'm still stuck with 1.00 and 1.25 how they apply
World is full of unnecessary complication
Mateeeeee I can't agree more!!! I'm used to metric what U used to? Lol
Yass i finally get it thanks so much!
great job on your video 🙂👍☕
In the metric, why is there three different conventions (M left, M right, no M) to indicate millimeter?
How is it possible to measure the metric pitch since the points (.4mm) are so small? It's difficult to measure the points even with a caliper. Is there any gauge on the market to do this?
Yes, since it's too small I've heard to measure 10mm and divide instead. For example, measure 10 mm and you get 15.....now divide.....15 ÷ 10 = 1.5, so its 1.5 mm.
Excellent!!!
Thanks and cheers from metric Moscow!
Our pleasure! Thank you for your feedback.
Very useful
I screenshot it! So useful!
Wow i understand now 👍
Which is more common, the metric or imperial system ? Do both systems coexist ?
Metric is more common worldwide but Imperial is the dominant system for the United States. The systems "coexist" in the sense that they are both in use. They are not easily interchangeable.
What's the stronger thread pattern?
Fine TPI or Coarse TPI
1.25 pitch or 1.50 pitch?
I think I just found my answer...
Apparently:
Size for size, a fine thread is stronger than a coarse thread. This is both in tension (because of the larger stress area) and shear (because of their larger minor diameter). Because of the smaller pitch, they allow finer adjustments in applications that need such a feature.
1.5
Amazing, thank you
How about 1/4 inch diameter, in Metric, would that equal to M6?
Yep
Thank you!!! East explanation
Bizarre... i been workin with bolts of all types for decades and never knew this and or its something not really talked about for some reason who knows why??? If you ask me this should be part of the 101.
Yeah just entered the electrical field and I was wondering the same thing. How come this isn’t explained
It is seldom necessary to know the details of threads in practice, although any mechanic should know this much.
That’s all fine and dandy there’s a bolt it’s down at the bottom of my battery how do I tell what size it is why isn’t it on the top instead of the metric tons of Paul
That’s Paul or weight of or strength why here your million idea and a silver platter
More things that should be taught in svhools. Thanks
Trade schools, maybe. This isn’t science.
In the US measurement, what happens if the screw is less than one inch? Forgive my stupid question. I just want to understand. Thanks.
There are usually only two thread patterns for a given diameter: coarse and fine. For example, a 1/4” machine screw will have either 20 or 28 threads per inch. You can tell the difference just by looking at it.
hey how do i measure in US/imperial if my screw is under 1 inch
Do you mean measure threads per inch? You would just use 1/2” or 1/4”. You could also just measure the diameter with a caliper. There are normally only two choices for pitch at a given diameter: coarse or fine. You can tell the difference by looking at it.
Thanks boss!
What means 8-18 x 1/2"?
Well, #8-32 is the common thread pitch for a #8 machine screw or bolt. A #8 with 18 threads per inch would be very coarse, and I don't think it exists. The 1/2 inch is just how long the bolt is.
A 5/16” bolt has 18 tpi (coarse).
#8-18 is a tapping screw thread
thank you sir!!!!! 😀
Thank you so much!
good video
10 points. Thank you.
excellent.
Useful.
Thank goodness for metric
Dear Sir, the thread under the head to the full threaded length is a screw and not a bolt, under the head to a specified length(depending on bolt size)plain shank no thread to the thread is called a bolt, being an ex mechanic we know the difference incl other trades
Thank you for your feedback.
my man
Thank you
You're welcome. Thank you for your feedback.
A caveman could understand
Beatifully presented
Perfect.
Thanks
thankyou
Cool !!!
Viewers Comment what application you needed this video for.
Power wheel chair assemblies here
👍👍👍👍Thanx
What about female side
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Why do you make video about metric thread if you don't really understand it?
What was wrong with this?
Why don't they teach this in school?