A well-presented lesson on how to identify the thread, pitch, size and grade of bolts of Standard-American-Engineering and Metric, as well as their grade, is very informative. Another topic of interest would be the use of various pitches and grades. All round, an excellent presentation on the subject.
just got a job at nut/bolt supplier, trying to school myself with this new language. this video is exactly the type of information i am looking for, Thank you
Nice lesson well shared slow and accurate as we are here for the metric lesson so we can convey this for our videos to our audience with your style and abilities. The nuts was best lesson for us. Thank you, Lance & Patrick.
Thanks for the video. Very informative. I knew little now I know a lot. The metric nut strength indicators are very easy after pausing the video and realizing what they've done. It is based on the hands of 24 hour clock. So grade 10 was indicating 10 o'clock (2 hands - 1 at 10 and the other at 12). Grade 12 both marks were at 12 o'clock. Grade 14 was 12 plus 2.
Great video thanks! I’ve been having difficulty finding the nut for a ground point so I wanted to learn how the measurement system works to be able to buy a replacement, it had never clicked for me before but this was informative and not too difficult to understand. Note to others: take good pictures, bag your stuff by part of you can’t leave it in the car, and don’t take long breaks with out finishing a project.
In a metric bolt the number on the head is not considered a decimal number. Instead, it consists of two independent numbers separated by a dot. The first number indicates the bolt's tensile strength, and the last number represents the yield strength as a percentage of the tensile strength. So 10.9 means: tensile strenght= 1000 Mpa (=1000N/mm2) and it yields at 0.9x1000= 900 N/mm2. 8.8 is the base level, I have never seen anything less. 10.9 is the strongest You can get with corrosion protect coating. 12.9 is just bare steel. But I learned a lot about inch stuff. Thanks
Thank you so much for this video. I'm prepping for my mobile hydraulic certification through international fluid power society and this is really helpful for the job performance station. Can you make one on hydraulic fittings?
That was really fantastic - from Australia. Where we use metric but still have a lot of older imperial nuts and bolts. Just purchased a bolt gauge because of this video.
OMG!! You are the best. I have learned so much in those 19 minutes than in other videos. You broke it down to where a child could even understand. Although I am not a child, you get the rhetoric. I need a professor like you in Construction Law. In short, your the bomb!!!!
Loved your presentation!! Clear, concise and informative. I was waiting to see if you were going to make any mention of Whitworth. Are they determined more like the Metric or the SAE. Thoughts?
I have a string trimmer and ordered a universal brush blade kit and the nut is too large.. i am trying to find a reverse thread and find the pitch on the threaded rod to buy the right nut for it
At 6:01 in the video the bolt is supposed to be 20 TPI. However, if you count the threads I only get 11 TPI. Does the picture not reflect the actual number of threads and we are supposed to use the number you inserted (i.e., 20) instead of actually counting the number of threads there?
The spec should be M12 x 1.25 x 83 That would a a 12mm diameter bolt with a 1.25mm thread pitch and would be 83mm long. They do not make a 1.26 thread pitch unless it is a special made bolt for a specific application. If that is the case it is special and would have to be purchased as a replacement part for that specific application. Also, replacement bolts would be sold in standard lengths such as 75, 80, 85, or 90mm. You'll probably have to pick one that is close to your application.
@@dreadknot2238 hi, i used a caliper and was able to find out that i needed an M6x1.0mmx20mm bolt for my roof rack. i have confirmed this as well because the original part has the same measurements. I bought the bolt and tried to drive it but it won't get past the first 3 turns. is the thread pitch wrong? but 1.0mm is what i have and its what's in the oem bolt. im not sure if i should force it because i might strip the thread.
10-32 Describes machine screw sizes instead of bolts. Generally speaking anything less than 1/4 inch is described in this manner. the first number "10" in this instance describes the thickness of the screw in sheet metal gauge. the screw diameter is the same thickness as a 10gauge sheet of steel (around 9/64). The 32 means the screw has 32 threads per inch. It's interesting to note that many of these screws still look like bolts because they do not have a sharp tip and may still have a hex head. We just usually refer to anything below 1/4inch in diameter as a machine screw.
iam 70 years old thank you for helping me understand bolts & sizing which I learned this yrats ago
Thought I was back in the lecture room. Excellent and brilliant teaching and discussion.
excellent instruction , thank you for being so clear and precise !
Never thought that Nuts and Bolts could be so interesting...
It really shows how determined the world has been to make things AS CONFUSING AS POSSIBLE
A well-presented lesson on how to identify the thread, pitch, size and grade of bolts of Standard-American-Engineering and Metric, as well as their grade, is very informative. Another topic of interest would be the use of various pitches and grades. All round, an excellent presentation on the subject.
ua-cam.com/video/CJmLfCgCZkI/v-deo.html
just got a job at nut/bolt supplier, trying to school myself with this new language. this video is exactly the type of information i am looking for, Thank you
Excellent video. It is important also to mention the fact that, for metric system a bolt can be identified as M6, M8, M8, etc. Thanks for sharing.
A most useful and informative presentation. Many thanks indeed.
Best one I've watched, explains it in an easy to understand way, thank you.
Nice lesson well shared slow and accurate as we are here for the metric lesson so we can convey this for our videos to our audience with your style and abilities. The nuts was best lesson for us. Thank you, Lance & Patrick.
Metric nut markings are based on a 24 hour clock by the look of it.
Great video..Well done and clear explanations. Thanks!
Perfect. Exactly what I have been looking for. Thank you for such an amazing tutorial video.
Dang that was awesome! Where have you been all my life!!! Thank you!
Man.. this was an excellent tutorial.. I always wondered how to tell the strengths of nuts and bolts, thanks so much.. I learned something new today.
ua-cam.com/video/CJmLfCgCZkI/v-deo.html
Fantastic video. This made it so simple!! Thank you
Excellent presentation & very interesting. Learnt a lot. thanks
Thanks for the video. Very informative. I knew little now I know a lot.
The metric nut strength indicators are very easy after pausing the video and realizing what they've done. It is based on the hands of 24 hour clock. So grade 10 was indicating 10 o'clock (2 hands - 1 at 10 and the other at 12). Grade 12 both marks were at 12 o'clock. Grade 14 was 12 plus 2.
Very cool!
Professional explanation, thanks a lot!
This finally cleared all the confusion around bolt/nut sizes! Thank you!
Great video, very clear and simple explanation.
Great video and details
Thanks dude. Total newbie here, it helps a ton.
Great video thanks! I’ve been having difficulty finding the nut for a ground point so I wanted to learn how the measurement system works to be able to buy a replacement, it had never clicked for me before but this was informative and not too difficult to understand.
Note to others: take good pictures, bag your stuff by part of you can’t leave it in the car, and don’t take long breaks with out finishing a project.
This was excellent, thank you!
Great video Sir! thank you for sharing
Thank you for the video!
In a metric bolt the number on the head is not considered a decimal number. Instead, it consists of two independent numbers separated by a dot. The first number indicates the bolt's tensile strength, and the last number represents the yield strength as a percentage of the tensile strength.
So 10.9 means: tensile strenght= 1000 Mpa (=1000N/mm2) and it yields at 0.9x1000= 900 N/mm2.
8.8 is the base level, I have never seen anything less.
10.9 is the strongest You can get with corrosion protect coating. 12.9 is just bare steel.
But I learned a lot about inch stuff. Thanks
Great video! I'm taking a small engine repair course and this helped. Thank you!
Thank you so much for this video. I'm prepping for my mobile hydraulic certification through international fluid power society and this is really helpful for the job performance station. Can you make one on hydraulic fittings?
Thank you I needed this.
Absolutely the best tutorial on nut and bolt identification! Thank You!
Thanks alot. You are great teacher.
Thanks for the tutorial!
Great explanation, thank you
Have an apprenticeship test in the morning, thank you for the video
Great info, I was very confused before watching this video.🍻🤠🇦🇺
Simple and great! Thx a lot🏆
Thanks A lot This Helps Me In My Job Workshop ❤❤
Thanks a lot,That is a very informative video. Although I am wondering how could you identify the thread pitch of a nut ?
Thanks that was great like your teaching can you explain the hardness of nuts versus bolts
That was really fantastic - from Australia. Where we use metric but still have a lot of older imperial nuts and bolts. Just purchased a bolt gauge because of this video.
Good information 👏👏👏
Amazing lecture. Thank you very much
good job man!
Thanks a lot sir for this interesting presentation , really it's useful information
Best regards
Excellent explanation...
Good explanation .thank you
Thank You, very informative.
Fantastic, thank you.
Great work.. thank you sir.
perfect. Thanks!
OMG!! You are the best. I have learned so much in those 19 minutes than in other videos. You broke it down to where a child could even understand. Although I am not a child, you get the rhetoric. I need a professor like you in Construction Law. In short, your the bomb!!!!
brilliant enjoyed your video have learned a lot thanks for your time
Excellent video
Loved your presentation!! Clear, concise and informative. I was waiting to see if you were going to make any mention of Whitworth. Are they determined more like the Metric or the SAE. Thoughts?
On a flat head (countersink) style you do include the head when measuring the length.
Yes you do
Thank you for the lesson
Great information thank you 😊
Thank you. Learning.
Thank you for this video
great job
excellent video
Brilliant.
Easy to learn when put so simple
Thank you sir !!!
so now i know.....thank you so much :)..............now i got too watch it again
damn good video - Thank You!
Wow... this is very helpful! Would you be so kind as to provide us the PowerPoint file to download? That will make a very useful little handbook.
Explained is so good
Great vidio
Nice video.
now i know some stuff. very helpfull.
Excellent tutoring
Thank you guys very much
Excellent
Thank you!
Thank you very much now i know!
Great video, but would have been helpful if you had mentioned AN (army navy) nomenclature and markings.
Have any videos on the different applications of strengths/grades?
Thank you👍✅
cool !!
Ty ❤
I have a string trimmer and ordered a universal brush blade kit and the nut is too large.. i am trying to find a reverse thread and find the pitch on the threaded rod to buy the right nut for it
good one
Thank you
👍
18:25 The metric grades seem to represent numbers on a clock. Grade 10 shows 10 on the clock 14 shows 12 + 2 = 14 on clock.
If someone still has problems with bolts or identification after this simple to understand lesson, they need to leave bolts to themselves 😂
What are parameters that determine the strength of the bolt or nut ? Is it the material or something else?
At 6:01 in the video the bolt is supposed to be 20 TPI. However, if you count the threads I only get 11 TPI. Does the picture not reflect the actual number of threads and we are supposed to use the number you inserted (i.e., 20) instead of actually counting the number of threads there?
Some learning from you
i have a bandsaw that needs a metric lh thred shaft is 70mm can you help me
Threads are stripped on the bolt I need to replace and it's hard to get the pitch. The bolt has YM stamped on top. Any idea what that means..
Letters are usually the manufacturers initials. Usually to identify what company manufactured a bolt if it failed.
Okay. But how to find in Allen head bolts
I wish the they went into tapered pipe thread etc.
If I have a Bolt that has this specs M12x1 26x83 what does mean . Has searched like this but nothing don't find nothing
The spec should be M12 x 1.25 x 83 That would a a 12mm diameter bolt with a 1.25mm thread pitch and would be 83mm long. They do not make a 1.26 thread pitch unless it is a special made bolt for a specific application. If that is the case it is special and would have to be purchased as a replacement part for that specific application. Also, replacement bolts would be sold in standard lengths such as 75, 80, 85, or 90mm. You'll probably have to pick one that is close to your application.
I'm a bolt nut!
how do i measure the bolt holes so I know what bolt to buy?
use calliper so if hole already has thread and say 8.586 it's would be 8mm bolt . you have to keep in mind for threads pitch also when buying a bolt.
@@dreadknot2238 hi, i used a caliper and was able to find out that i needed an M6x1.0mmx20mm bolt for my roof rack. i have confirmed this as well because the original part has the same measurements. I bought the bolt and tried to drive it but it won't get past the first 3 turns. is the thread pitch wrong? but 1.0mm is what i have and its what's in the oem bolt. im not sure if i should force it because i might strip the thread.
@@aaronalquiza9680 might be the wrong pitch i belive it come in several numbers. good luck.
@@dreadknot2238 the pitch is the same as what the OEM has. but i will look for a lower pitch bolt. thanks
genius
A good lesson - but correct is "National Coarse," - not "National Course" - a minor spelling error but one which might limit clear understanding
if a bolt is described as a "10-32 threaded rod ", how do we measure it ?
10-32 Describes machine screw sizes instead of bolts. Generally speaking anything less than 1/4 inch is described in this manner. the first number "10" in this instance describes the thickness of the screw in sheet metal gauge. the screw diameter is the same thickness as a 10gauge sheet of steel (around 9/64). The 32 means the screw has 32 threads per inch. It's interesting to note that many of these screws still look like bolts because they do not have a sharp tip and may still have a hex head. We just usually refer to anything below 1/4inch in diameter as a machine screw.