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 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.
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.
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?
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?
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?
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.
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.
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.
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
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.
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.
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
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.
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
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.
AWESOME , explanation is STRAIGHT to the point. Clear as water. Thank you !!!!
I wish every RUclips video was like this. Straight to the point and no bullshit.
Well done!
Please like and subscribe and enable the notification bell. ;-)
I am in a Metric country (Australia) this is by far the best explanation.
This explained it better than anyone ever could. I am now a bolt measuring teacher full time
damnnn this is gold no extra unecessary information its Crystal clear
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.
This is the best, quickest, easiest, straight to the point tutorial on knwoing everything you need to know about screw sizes! 👏
couldn't expect anymore from a tutorial video.
most simple and the quickest and most usefull
You guys have the best videos on RUclips for fixing cars. Great work. I really appreciate that you provide specs for torque.
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.
Plain and simple explanation. The best. Thanks
This is exactly what I was looking for. Thanks a bunch!
Best explanation of any article, website, or video I've ever seen before! Thank you!
Thank you man. Short and brief explanation.
Thank you, straight to the point and the diagrams help explain it perfect
best explanation on youtube, hands down!
Great explanation.
greatest and very helpful video man I never comment on videos but this got me, man, this one got me
This video is gold. Thank you for the clear explanation.
You're welcome! Thank you for your feedback.
That's what I am talking about. Straight to the point, great video sr!!
simple and very easy to understand. Thank you for the video.
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!
Excellent video, Brother-Man. Thanks.
Thank you so much for this simple, yet effective explanation!
Excellent presentation
Thank you for an illuminating video
Excellent!! Straight way all explained my queries in short.. Keep making like this video. Thanks a lot!
Very well-explained!
The best and simple explanation. Thank you a lot!
Brilliant clear explanation. Great vid!
Nice, simple and informative! Thank you!
Thanks for the clear and precise explanation !!!
Glad it was helpful!
Best explanation ever.easy to understand
Thank you for your feedback!
This is why I love RUclips.
Thanks for clearing up metric.
You're welcome! Thank you for your feedback.
Nice and clear. Thanks
thank you this was very helpful
Thank you so much. This is awesome. I just needed the info. ❤
Thumbs up buddy, crystal cleared.
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?
Nicely explained!
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?
thanks , clear explanation
Very useful
Yass i finally get it thanks so much!
Thank you!!! East explanation
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!
Great video!! Cheers
Amazing, thank you
Thanks boss!
Do I measure the diameter of the screw/bolt from the peaks or valleys of the threads?
I screenshot it! So useful!
Excellent!!!
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?
great job on your video 🙂👍☕
Thank you sir !
Thanks and cheers from metric Moscow!
Our pleasure! Thank you for your feedback.
excellent.
Very concise!
Though, I'm still stuck with 1.00 and 1.25 how they apply
More things that should be taught in svhools. Thanks
Trade schools, maybe. This isn’t science.
Wow i understand now 👍
good video
World is full of unnecessary complication
Mateeeeee I can't agree more!!! I'm used to metric what U used to? Lol
Useful.
Thanks
Thank goodness for metric
thank you sir!!!!! 😀
10 points. Thank you.
my man
thankyou
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.
Thank you.
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.
In the metric, why is there three different conventions (M left, M right, no M) to indicate millimeter?
Perfect.
Cool !!!
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
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
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.
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.
How about 1/4 inch diameter, in Metric, would that equal to M6?
Yep
A caveman could understand
Beatifully presented
👍👍👍👍Thanx
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.
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.
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
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What about female side
Why don't they teach this in school?
Why do you make video about metric thread if you don't really understand it?
What was wrong with this?
Thank you that was very helpful.
Thank you so much!
Thank you
You're welcome. Thank you for your feedback.