How to identify a metric or imperial bolt quickly!
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- If you work with mechanical things, you must know this. Grabbing the wrong family of wrench or ratchet is frustrating. Know before you walk to your toolbox how to easily tell if you're dealing with a metric bolt and nut, or one that is inch (imperial) hardware.
As mentioned and shown in the video, here is a link to the FASTENAL Reference Guide that is a handy PDF. No affiliation, just sharing a good tool that I found on the internet in the past.
www.fastenal.c...
#howto #mechanic #farming
3/4" is interchangeable 19mm, not 18mm.
"Grade" referres to Imperial bolts (Grade 5, Gade 8). Metric bolts are are "Class" (Class 8.8, Class 10.9). Further, the metric Class number has meaning.... i.e. with Class 8.8, multiply the first numeral by 100; gives the nominal tensile strength in MPa (800 MPA). Multiply the second numeral by 10; gives the nominal yield strength as a percentage of tensile strength (80% x 800 = 640MPA).
I did not know that about tensile/yield strength calculation regarding metric class bolts. I love learning through people's comments, thanks for sharing!!
So, basically the same thing
Metris IS standard in 98% of the world.
Yes, you're absolutely correct, which I am very familiar with but when recording I didn't think about my global audience and what the generic term 'standard' would mean. Good learning on my part, and I've been correcting fellow American friends as I've talked to them over the past month 😀
Thanks for watching!
Not in Canada, you could have mixed imperial and metric on the same component, very frustrating
Excellent!
And thank you for no seizure inducing annoying intro music.
Haha, I haven't really ever been a fan of background music. Maybe someday, in the right moments, but must be modest and not distracting.
Here in the rust belt, beating on a socket from the other set because the original size is no longer going to turn it is standard practice. One mm increments are not fine enough, so I have .5 mm sockets for some popular sizes, too. Going to the tool box can be more complicated than just a metric/SAE choice.
The 'rust best', you have my curiosity up.....is that the humid deep south or coastal area somewhere? Definitely nuisances to different places, thanks for sharing!
@@LearnedFromDad The rust belt is that part of the country from New England to the Chicago area where they use salt on the roads in the winter time. The salt and water rust and corrode any metals that can be oxidized, such as steel and aluminum. Bolts on cars are no longer their original size after two years on the road, but are swollen with rust. It also refers to all the shut down factories that are rusting away.
Wheel lugs that have a chrome shell usually swell to 1/2mm larger than original. Other bolts will simply grind away if you use a socket of the size the bolt was originally, so you need to take something a bit smaller and hammer it on through the rust. It also helps to use generous amounts of penetrating oil and heat, but that the bolt is no longer the original size because it rusted away is typical. The SAE sizes often work when the bolt was originally metric; other times, a metric size will work on older cars where the original was SAE. Too often you end up just drilling them out, or welding on a nut if you have to.
@@kenchilton here in australia we have another issue...bsa and whitworth was popular... and we still occasionally get nuts and bolts NEW that have these wacky sizes...
its bigger than 13, but smaller than 9/16... bit bigger than 10, not quite a 7/16...
six point sockets help... sometimes.
any OLD machinery... rip em out and retap to metric if the historic factor is unimportant...
the REAL challenge is to identify BSA/UN/SAE from BSW at a glance. whitworth threads.
like NPT from BSPT.
55 versus 60 degree "iso" flank angle.
some of the finer pitches can be a bit tricky, gas and plumbing is a nightmare of standards and non standards, LH and RH, and short thread lengths you cant measure properly...
M5x0.8mm looks a lot like a... 3/16-32 UNEF?
3/16=4.75mm, and 32TPI=0.794MM...
but to me, UNC just looks... steeper. deeper threads.
All of that variety makes my eyes roll back in my head. Apart from BSP, I can't identify any thread just by looking at it, so it's all trial and error for me. If you or @LearnedFromDad get time and can give more details, I would be grateful. Cheers.
As an industrial mechanic i have both sets of wrenches in my tool boxes. I honestly prefer metric. This is fine with hex head bolts, if you want problems do this with socket head bolts😅.
Amen. Always challenges! Has always just blown me away that such a simple trick on hex head bolts is so often unknown.
Thanks for what you do as a mechanic, the 'un-sung heros' of every industry!
3/4" Wrench technically equals 19mm. 18 is too small.
Thanks for the comment. Understand. I had debated displaying a metric/imperial equivalency chart within the video, but I was trying to not go down that route. Rather, focusing specifically on pay attention to the hardware, and you'll know (most of the time) if it's metric or imperial. So, yes, used an 18mm to prove a bit of a point, versus the specific (near) equivalent of a 19mm. Cheers.
True but 1/2" + a dime is 10 mm
Those grade markings can be found on bolts from the hardware store. Unfortunately, cars, motorcycles, lawnmowers, and just about any other OEM uses their own bolts without markings. Good video nonetheless.
OK for new bolts. I have literally hundreds of bolts removed from equipment. Many have no markings at all but are high strength, and others have oddball markings that are not like what you show. The Mexican socket set (crescent wrench) ends up being the final answer!
Yeah, can be quite random what a person finds for markings. Can be tricky because certainly could run into things that are high strength, to some extent, like you say but without markings it's so hard to know specifically.
And, I always refer to it as a left handed adjustable 😀
Thanks for watching!
The hex base on a rain bird impact sprinkler is 13/16, you need a thin wrench. I once struggled a weekend trying to remove a water pump from my little Honda car engine. I found out later that the bolt heads were tapered and beveled and needed a special Japanese wrench or socket.
Are you referring to an irrigation pivot rain bird for agriculture? I've got lots of sockets and such that have been ground down to fit in certain spaces. Appreciate you sharing.
@@LearnedFromDad No, referring to a standard homeowner lawn sprinkler rainbird.
Metric is standard in a huge amount of places!
Yes, I wish I could take back my usage of the term 'standard'......that was a lesson learned into using a slang term inappropriately in the TH-cam environment. I'll do better, I'm learning quickly. Thanks for watching!
"Metrinch" work well.
nice explanation and very well presented...if you are using fasteners a lot it is very useful to memorize what wenches and sockets interchange between SAE and Metric..eg i use 14mm when i need 9/16 as it fits nice and snug....a 1/2 inch wrench fits tighter on a 13mm bolt than a 13mm wrench etc...if you are desperate and need to remove an 18mm and only have a 3/4 or 19mm wrench, try slipping a dime between the wrench and the nut (open end only).
Thanks for the tip!
A country only needs one logical, comprehensive measurement system. What it doesn't need is two, totally incompatible systems of measure in concurrent use. Imperial/USCS coexist so "Is that a metric ton, an Imperial ton or a US ton? Thus compounding the potential for error and confusion.
I may have been a little strong in my video comment about everyone moving to metric. What I was implying, more, is I sure wish the world had one measurement standard. I say that selfishly because I work in metric/US measurements daily and always run into conversion and rounding issues.
But, I guess if it was all the same, we'd have less to learn about 😀 Cheers!
gallons always get me. theres the british gallon versus the us gallon... ffs.
a litre is a litre...
@@paradiselost9946 My feelings exactly.
A couple of decades ago, Costco were selling imperial spanners in metric Japan. Possibly a useful addition to the toolbox, but hardly a mainstream need.
Oh, interesting! And, you called then spanners, what country do you hale from? I remember my first trip to South Africa, I asked a guy to grab me a wrench and he brought back a ratchet....I was confused until he explained I needed a spanner 😀 Cheers!
@@LearnedFromDad
Sorry for the delay. Cat on the keyboard.
Can make a comparison between driving/car ownership in UK and Japan. Interested?
Jack, the Japan Alps Brit
I couldn't find anything metric on my 1980 Ford F-150 short bed yet. But being old I have plenty of standard and metric American made tools just in case.
Classic old Ford, nice! I was always a Chevy square body guy myself. Thanks for watching!
This video is very helpful the next time I see clean shiny bolts on a car I'm working on. Rule of thumb is, if made somewhere besides USA, it's all metric, made in USA after 1990 it could be both, made after 2010 it's metric, but in building ships in US it still could be both SAE and metric but most likely SAE.........
Glad it helped
You sound like my father, who was a marine engineer. For older (much older) English stuff, the same comments could apply. Thanks for sharing your knowledge.
@tonywright560 you're welcome. I love to share what knowledge I have. Take good care!
Would you like to see my Taiwanese milling machine that has some British Standard Whitworth threads on it. My Taiwanese engine lathe has all the handles made with Unified National threads.
The point is to make sure what the thread is before trying to screw the bolt into a hole with an impact wrench.
If you fly and notice a Rolls Royce badge on the engine cowling, the engine ignitor wiring harness connectors are probably Whitworth. This is to enable backwards compatibility.
@@aceroadholder2185 A milling machine made in Taiwan with USS thread pitch is very strange, I never bought anything from China or Taiwan that has USS bolts, sounds like a frustrating machine to work on...
Great stuff James, I worked as a industrial mechanic for 25 years . We had some bolts that required a 2" wrench to tighten! We used a lot of Socket head bolts. I don't recall using anything harder than a grade 8 ! I will say this if that bolt is really tight, you better be on the money , else wise you will have to break out the universal pipe wrench !!!! In talking about grade , I would say that for example a grade 8. Grade 8 are usually gold in color ,or are they . Take head bolts for a car engine . They could be grade 8 and be oxide coated. We home owners don't a Rockwell meter laying around to check these things .
Thanks for the comment and watching! A delicate balance with these videos of being mostly targeted at the average human who has never been exposed, but still provide reasonable detail. I bet you came across a lot of interesting scenarios in those 25yrs of experience. Take good care!
@@LearnedFromDad you bet ya ! Striped out threads in cast iron !!! Broken off bolts , broken taps , seized nuts , seized dial pins !cracked this and cracked that . I could go on and on . Thank you for replying!
6 point sockets are handy because they make it easier to use on the wrong nuts and bolts. Might save you a trip if you have a 6 point metric that'll work on a standard.
If you can find them. OVer the last few years I've acquired nearly a full set of HF Quinn sockets in 1/4", 3/8", and 1/2" drive. Their standard is to have the short sockets be 12pt, and long sockets being 6pt. I've got mostly sets of old Craftsman in both 6pt and 12pt out in the shed(cheap bucket of very rusty sockets at a garage sale and some weren't able to be cleaned up)
Offer it a Camel and a Newport. Metric takes the Camel. Can also use warm vs. cold beer but cigarettes are easier
Haha, I've never heard that one before! Thanks for watching!
Stainless bolts that are marked with A... are also metric (A2-70 for example). There are other letters for different steels, but most of us would only see austenitic steels regularily.
Thanks for the comment. Yes, for an average person, I was definitely targeting common hardware. Quite the slippery slope it could go down.
You would think with all the crap they stamp on the head... They could just stamp the size on there...
6 lines for grade 8, 3 lines for grade 5 no lines for grade 2 could this make any less sense... Who's on first what's on second 🤣🤦
That's too easy. Plus, then you wouldn't get the experience of buying hardware twice because you didn't measure and guessed wrong at the hardware store 😀
Mechanic who regularly works with nuts and bolts will tell the size just by looking at it, also it's easy to measure if necessary. But It's difficult to test grade.
Helpful video, thanks!
Glad it was helpful!
Here in europe, metric is the "standard". But we also accept imperial units "standard" for certain applications.
Just a nitpick, good video again though. ;)
'Standard' is such a trivial word, isn't it?! That's an interesting point, I appreciate you sharing. I look forward to the day the total world only has metric!
@@LearnedFromDad Sure is, as long as there are deviations from it. ;) But i can live with two competing standards. No rush to phase one out by force, that would only create more problems than we already have. :)
Keep up the good work, cheers!
@@LearnedFromDad "Standard" comes from the SAE(Society of Automotive Engineers), as it is/was their standard sizing.
I can't say I agree with looking forward to a world with only metric. The metric system is based on a Universe size scale. Imperial measurements are based on the human scale(i.e. a foot is roughly the length of your foot.) The Metric system goes for a meter(3.28ft) down to the Cm(0.32ft) in one step(and why does no one use the Decimeter, which roughly 1/3 of a ft). Within that scale, the Imperial system 3 different measurements easily converted into each other in easily scalable numbers(i.e. 1' ft equals 12 inches, 3ft equals 36 inches which also equals a yard. An inch is roughly the width of my thumb, a ft is roughly the length of my foot, and a yard is roughly the length of my arm.
@@samuelfinsky6466 Easy enough to work with just 2 primary competing standards. If you really look into it, the Machinists Handbook(I've got the 27th edition) has 305 pages of very fine print just on threads. They list at least 5 major thread systems(SAE, Metric, Acme, Buttress, Whitworth, Pipe) as well as a section on "other threads" which has about 25 other thread systems in it.
@@ravenbarsrepairs5594 I live in Europe, so I am used to the metric system and the imperial units are weird to me with weird conversion factors.
For me, the fact that metric system is decimal makes it easy to convert between units to drop unnecessary zeros. If I measure/calculate something as, say, 1000 inches, I have to keep the zeros or divide the number by some weird coefficient (12 or 36) to get the larger units. On the other hand, converting 1000cm into 10m is easy.
Why does nobody use dm? I can't speak for everyone, but for me, it is not really needed. For something small or if I need the precision I'll use millimeters. If the measurement is bigger than, say, 100mm and there is no need to be precise, then it's centimeters. Over a meter, just use meters (again, unless there is a need or precision). I don't like a lot of zeros, but I also don't like if there are lots of numbers after the decimal point, so 127.5cm is better for me than 1.275m.
Since if is so easy to convert between the units, there is no need to have separate units for specific measurements (a yard is 3 feet, so converting to yards you don't really shorten the number and you also have to divide by 3), like feet for measuring the length of a cable ,but yards for measuring something else (you probably don't measure cable length in yards, but feet or inches if it's really short). It's annoying for me when I watch videos about airplanes and the altitude is something like 20000 feet. Too many zeros for my tastes, but it's not easy to convert that into miles.
As for measuring things using my body, well, for everyone it is different, but for me, if I extend my arm, then the distance from my fingers to the shoulder of my other arm is pretty accurately 1 meter. I sometimes use this to measure cable length. For everything else I just use a tape measure or a small object with known size.
Length may not be as confusing, but weight (something weighs 5 tons - so is it 5000kg, 5080kg or 4535kg?), the various types of ounces. So yeah, for me the imperial units are weird and confusing, but thankfully I only have to deal with them when watching videos and do not need them in real life.
I'm going to disagree with your assertion that 19mm isn't equal to3/4" close enough for them to be interchangable. There are 2 sizes I off the top of my head know are completely interchangeable, those being 13mm=1/3" and 19mm=3/4". The 3/4" being 0.05mm larger than 3/4" is not enough to call it a loose fit. 19mm is literally 0.002", or 2thou as a machinist would sat smaller than 19mm. That's within the tolerance range of most machined parts.
Also want to add, for some manufacturers like snap-on, they are literally the same actual part, and machined identically, and are interchangeable. They themselves know that the difference is so small and within the tolerance that they just have a kind of precision that all of them are the halfway between the two
Understand completely, and a fair comment. Was generally wanting to show those who aren't normally using wrenches/ratchets that some sizes are virtually identical and some aren't quite as close.
I've merged my wrenches/sockets together.
They are sorted from smallest to largest.
I use the smallest one that fits.
You know, you bring up a really good point. Wouldn't it be ideal if wrenches/ratchets were sold in sets, exactly like you're saying, where regardless if the wrench is metric or inch, that they stack purely based upon comparative size? I like it.
@@LearnedFromDad Necessity is the mother of invention.
lol
@@anonamouse5917I said that exact phrase to somebody just a couple days ago, haha......I think it was my kid actually 😊
@@LearnedFromDad Say, "Frank Zappa necessitated The Mothers of Invention". Post your kids reaction here.
I wonder about possible confusion in aircraft and other critical applications, where wrong grades of bolts might be used.
Oh, for sure! Maybe someone can comment about hardware typically used in aviation. Thanks for watching!
Not the most accurate I know (all you trade ppl u gotta chill) this is for DYIers n hobbyists and the channel is awesome and underrated.
Appreciate your comment. And yes, I have plenty of knowledge, and always someone who knows more, but definitely intended for an average person to understand simple things. I've been told waaaay to many times, explain more simply (to an average person), so here we are. Thanks for watching, stop back!
When I was a kid working on my bike i used ro use a flat srew driver as a shim because u didnt have the right size wrenches, lots of stuff i used to rig up.
Haha, ahh yes, do with what you have. A flathead, a coin, anything. Mechanics and farmers are my people and my most favorite characteristic about them is their ability to just figure it out with what they have. My kids are occasionally thrilled by the random "make it work" hacks I come up with 😆
Awesome video. I learned so much. One question: What's a bolt?
The rest of the the word still refers to it as "British Imperial Units" specifically because imperial isn't "standard", it's not "American" and the SAE is an organisation that actually makes useful metric standards, especially in Aeronautic and aerospace, but even in fluid power systems.
The United States uses something called U.S. Customary Units of Measurement. British Imperial Units are an entirely different thing. If you want to dive down a huge rabbit hole, start with en.wikipedia.org/wiki/Imperial_and_US_customary_measurement_systems.
Wow that makes sense now.
In a standard metric country ive always wondered why some equipment and tools designed in America but sold internationally in metric had such odd nut bolt and screw sizes no-one would normally use like a 16 wrench. The designer still thinking old imperial sizes and finding the metric equivalent.
Does this also extend to some of the odball metric units Americans sometimes use such as Calories and mols per decileter and always use milimeters and ignore all other prefixes thinking they different units. Just curious.
Also perhaps worth pointing out that there are enormous numbers of metric bolts out there that do not have a strength class number on the head. Only the 'good' ones have that info, The vast majority of smaller metric bolts do not have any markings.
This video is amazing all I need now is Time Machine to go back 50 years and someone still using imperial
Thanks! Simple explanation to be (hopefully) helpful to any average person. And yes, the metric/imperial debate! 😀
i personally believe SAE up to 3/4 is the best system...once you memorize the 9 or so wrenches in that range it becomes very easy....also there are only two basic thread pitches 'normal folks' need to worry about...referred to as fine and coarse...with metric i lost count of the number of thread pitches and shaft to head size standards there are...
just ask it any geography question and if the bolt answers "asia!!", it's imperial.
I've never talked casually to a piece of hardware before, only in anger when it won't loosen! Maybe I need to try a different tactic. Cheers!
When you get to looking at metric vs imperial thread sizes the worst has to be 6mm vs 1/4" they will start to go together but lock up after a few turns, that's when a gorilla swings on the wrench and starts to cause damage where using the right nut or bolt would have been so much easier.
Hahaha, yup! Often times, brute force only causes you trouble!
This is super informative! Thank you!
Glad it was helpful!
Just use Metrinch sockets or wrenches.
So, you're saying the good old universal/adjustable wrench? It certainly doesn't fit the bill sometimes. Hopefully not a high torque situation, too mamy times (as a younger guy) I have rounded off corners of the nut/bolt head. Hard lessons learned! Take good care!
Just stamp the size of socket you need. Done
Keep it simple, right? Cheers!
I thought everyone knows 3/4 is interchangeable with 19mm
Metric all day long… who needs fractions in measuring…. Only the insane… 🤯
Yeah, I just wish globally there was (1) way, everyone's lives would be easier. Not just hardware, but in all means of measurement. Way too many cases of conversion rounding errors, etc. Thanks for watching.
Thanks for the chart, l like it.
@@ronsreadyornotshop you bet! Probably others out that with alternative data, but I've liked using this one as it's pretty concise. Cheers!
thank you, good video. i am waiting also for a video on thread sizes ;-) i have some experiences of trying to thrust a SAE bolt into a metric hole... and the difference between different step size in SAE bolts is a topic worth mentioning.
I did post that exact video soon after this one, jump over to my channel and check out the "Hardware" playlist!
There is one "interchangeable " size of bolts metric vs. unf (?) 10 mm maybe ? I do not remember. The same thread pitch and nearly same diameter . But: the threads engages not entirely. You can tighten the nut, but after time / load and vibrations the threads will be loose or stripped. Dangerous. Knowing it from brake lines ... . No marks on the nuts and cast iron.
Hmmmm, I'm not 100% sure, but I bet someone will know and comment.
10-32 and M5 x 0.8 is the closest match I know of among common sizes. 10-32 would be like M4.8 x 0.79.
@@YoeyYutch I think it was something around 10 mm. I know it from my TR 6 , where it was changeover from Imperial to metric calipper threads in some year. Some of this cars are driving with mismatched brake lines. As mentioned : it fits perfectly - but loose .
@@tenhendee5479Yeah if you threaded an M10 x 1.5 nut on a 3/8 - 16 stud or bolt, it should fit like you said, perfectly - but loose. Then after about five spins, it would either start binding up or stripping threads. A good example of why you can't just switch to the metric system.
I think 13 mm & 1/2" are interchangeable.
Yep, that's correct. That's a key one I can always remember, based on the frequency I use it. I intentionally didn't touch on all the cross-over sizes, will do that when we talk about wrenches amd sockets. Thanks for watching!
wouldn't it be great if they actually put the size of head on the bolt, so you knew what wrench to use.
But that would take away the talent of knowing (obscure) facts like reading lines around a hex pattern 😀
The only thing metric does is make fasteners compatible it will never make a Ford water pump fit a Toyota.
I like and agree,when he says that he wish that everybody should be metric,why ? Because it makes more sense.
But then again,when I see all those Americans bend over to Trump,I understand why the Americans are still stuck with Imperial(standard) measerments.
There is very few countries that still employ Imperial measurments.
Thank you for putting the Fastenal guide in the video
I sometimes forget I can refer to th internet to find these resources
You're welcome! Remember the days before the internet? I do, there were definitely goods and bads about it.
@@LearnedFromDad
I’m born in 1978, I do recall 😊
If we didn't know a guy who knew what to do, we were breaking plastic clips lol
Now there are 10 videos on the Internet for every single thing that I know how to do (good internet)
But the social media aspect went to shiit quickly (bad internet)
The lines on the bolt head are called Head Stamps .
19 MM X .03937 = .74803
3/4” is .750
13 MM X .03937 = .51181
1/2” is .500
The tolerance is acceptable . Good Video .
19mm is 19mm, 13 etc... no one should convert to crappy inch ! inch is a stupid way to write 25.4mm. Only one set of tools, metric. I rarely see inch fasteners and a crescent or vise grip is the way I handle it.
@@jpcaretta8847 I never realized I just met a GENIUS with a CRAPPY ATTITUDE ! Are you a Mr. KNOW IT ALL too ?
@@vicpetrishak7705 kind of, indeed ! And thank Ford who indirectly made the US inch exactly 25.4mm. The brits were less lucky.
The video showed a 3/4" vs 18 mm. Try a 3/4" vs 19 mm instead. This is a common size for lug nuts on a car.
What about SHCS?
Wow! That was great. I never knew any of it. Thank you!
Thanks, I'm glad you learned! That's my #1 goal, share education that I'm familiar with, and let others expand via the comments. Stop back soon, much more to come!
metric = standard
I quickly realized how the term "standard" is relative, particularly based on where a person may live. Always learning!
@@LearnedFromDad Standard is/was the standard for the Society of Automotive engineers. Up until the 90's, everything mechanical made in the USA used that standard. It wasn't until manufacturing of heavy machinery and automotive went offshore that Metric became the norm, and for a decade plus, vehicles used a mix of the fasteners, based on when the components had been designed. The Jeep 4.0 in my '02 WJ has mostly metric fasteners, but components designed over a decade earlier, such as the engine, transmission, and transfer case, all use mostly standard fasteners, with the odd metric mixed in from modifications to those parts over the years.
I'll never get over that. Calling something that is none standard standard because one country uses it ubiquitously is a bit weird.
When we say standard it's a regular size from the hardware. Normally between M4- M10.
We call the old system Imperial sizes. It's certainly not standard at least not for over 100 years.
I will agree with u I wish the USA would never had anything to do with metric.
My opinion
Thanks
Options are valuable! I think anyone, globally, would just in general like a single measurement system to deal with. Thanks for stopping by, more content to come. Cheers.
Cool. Also, 22mm=7/8",19mm=3/4" and 5.5mm=7/32".
Appreciate that! It definitely would have been helpful if I would have added a chart of sizes that aligned. Thanks for watching.
@@LearnedFromDad
In my experience in Australia, at least, steel rulers will often come with a conversion table on one side. The 12"/30cm ruler have in front of me lists the metric equivalents of 1 to 12 and 36 inches, half an inch, 1/4" and 3/4", plus all the (odd) eighths, sixteenths, and 32nds of an inch (up to five decimal places!). I think the 18"/45cm ruler I have in the workshop (which has more room) also has all the 64ths of an inch.
It's arranged by imperial sizes, so it's easy to find the metric equivalents, but not so easy to go the other way.
@@PJRaymentthat's super convenient. I miss AU, spent 2 weeks there for work, what a great place with so many fun things to experience. And, the people were great. Thanks for sharing your experience!
Imperial is standard? 😂. The rest of the world is using metric, so thats is the standard.
Haha, yeah, about that. A hard lesson learned on on of my first videos, and not considering my global audience! I completely knew better, I've traveled the world and know the standardization of metric elsewhere than the US. However, I'll maybe blame my own dad (tool & die maker) for endlessly pounding into my head the term "standard" (for imperial/inch hardware) 😁
@@LearnedFromDad it's okay, it is/was your dad's POV. As long as we learn, its 👍
most of the "standard" bolts shown are USS, not SAE
3/4 = 19 , 1/2 = 13.....
Yes sir, understand. I grabbed one wrench off for perspective, probably should have grabbed a different size bolt that didnt align in size like a 3/4 to 19mm. I debated about showing a comparison table of metric to inch wrenches, but decided not to as I was specifically trying to highlight for newer learner the simple way to (often) quickly identify a metric versus inch bolt. I'll definitely show crossover table when I do a video on wrenches/spanners/ratchets. Thanks for stopping by and sharing!
most bolts the average guy comes across don't have markings which makes this video useless for most of us...kind of a misleading title
Matric = the standard 😅 SAE is outdated😂😂
Noted 😀
Any good machanic can see the imperial pitch is coarse like a wood screw ! Anyway, you onky find these garbage imperial fasteners in North America.
Thansk from the comment. You bet, mechanics and there experience is outstanding.....able to recognize at a glance. Just trying to help put all the non-mechanics be a little more knowledgeable.
Understand the metric/imperial debate. Life would be easier for all with just one measurement system in general.
Take good care!!
Difference between metric and standard... Oh boy metric is standard at the rest of the world. Imperial is the Non standard..... US is strange with their "standards" you are using imperial nearly alone beside the UK...
Oh yes, understand. The great hardware debate if metric or inch (imperial). Makes for often unnecessary challenges for all types of people. I'd love nothing more than a global use of one system or the other...I'm impartial to which. Thanks for watching, stop back soon!
If you can't tell by just looking at the age/manufacturer/application, the threads, or bolt head markings, you probably need to just bring both sets. With time you'll just know what size it it. For most made in the past 20yrs things, it's likely metric if your not dealing with an industrial, homemade, or heavily modified item. I have a 2002 Jeep WJ, and it's got metric on all parts not redesigned past ~1995, and mostly SAE(with Metric for some changes made specific to the WJ) on the engine, transmission, transfer case.
whitworth kills me... lol.
The world is metric, only a small group of countries use inches, change and be happy, a clear system!
Most of the world are 3rd world shite holes. So no.
Haha, you bet, I'd personally be happy to work in metric only. My day job I live in both worlds and it can be frustrating....it's like knowing two opposing languages.
Not in china made
"HATE" metric and extremely happy SAE and NPT sizing. With American, I can tell what wrench I need just by looking. Metric is a Cluster Starts with an F and ends with a K and does "not" spell Fire Truck!!! I have zero problems at all with the American system, identifying sizes, grades of hardness, and convert to American at every opportunity. It's very simple. Only someone trying to promote the metric system would find a problem with identifying the grade of American bolts by looking at the head!!!! I find the metric system an abomination, extremely inconvenient, and have been fed up with it for over 50 years now. I do not care what grade bolt it is, I always, Always, ALWAYS replace it with Grade 8!!! Who in their right mind would ever use anything other than a Grade 8 whenever possible!?!?!? Only someone trying to promote the Metric System. There is zero problem in identifying American bolts, only to those misguided and trying to promote Metric. Metric identification is problematic and is the problem in itself. The "ONLY" problem I ever have with anything is when I'm forced to try to find a metric measureme to replace some metric bolt. Talk about a fiasco!!! The exact "opposite" of what you are trying to promote. Just STOP with the constant promotion of "we need to go metric" when what we really need is to get back to American!! I get that the "world" wants us to conform to them, but that is just WRONG!!! After over 3/4 of a Century On this Great Planet...Give me Plain Old Fashioned AMERICAN Standards for everything!!! We do "NOT" want, much less need, to be like Europe!!! Or anywhere else for that matter!!!! "Learned from Dad???" I doubt it. Your father did not teach you very well if you think "metric" is the way to go!!!
Dude I've been wrenching on motorbikes and cars for most of my life (since the late 80s when I taught myself which end of a wrench was which) and you're not going to believe this, 95% of that wrenching has been metric... I must be doing it wrong! LOL
The difference is.... Nobody uses imperial!!! Jeez imperial died along with the dinosaur 🤣🤣
Hahaha, I know, right?! I wish.
Still used in many industrial applications, as well as what would now be considered old vehicles from the as recently as the early 2k's. At least where I am, Imperial bolts are a lot cheaper to buy them metric. I can get 7/16-14 bolts for around $6/lb, whereas the M10 bolts I recently bought cost $10 for the shortest ones I could find. With the Imperial size being off the shelf locally, and having to order the Metric online.
....almost all aviation fasteners are standard/SAE....my 2018 wrangler has both SAE/Metric fasteners on different parts of the drive-train and axles.
Imperail didn't die with thr dinosaur. Standard/ imperail has died slowly. It is still used and used quite often
@@dwhallon21 Even in nations that have gone metric, there are a lot of imperial measurments mixed in. I still wonder when the metric world will go to a metric time system.