who has gone metric?

MCRIPPPer said:
well, sae is not a measurement system is it? does the society of automotive engineers use metric maybe?

not sure why people call inch-pound system SAE.
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This is the first time I've seen it done. The proper name for the inch-pound system used in the USA is the US customary system. The one formerly used in Canada and the UK is the Imperial system. It differs from US customary in subtle and not-so-subtle ways (Imperial pints are 20 oz).
 
Nobody calls the inch-pound system itself SAE, but people often describe fine pitch inch size bolts as "SAE", because SAE set standards for them for automotive use.

As long as material suppliers sell only inch size stock, I'll be working in inches at home. At work, it's a mix. All of our product drawings are metric but all tooling and automation (my job) drawings are inch.

I find it amusing that friends in other countries buy 2x4 lumber and 1/2" copper pipe... by the meter.
 
MCRIPPPer said:
well, sae is not a measurement system is it? does the society of automotive engineers use metric maybe?
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According to sources online, SAE is a designation that was for US standard/imperial screw threads & replaced by unified screw thread designations. Because of which many probably still tend to call these threads SAE. Sure, SAE engineers may use metric but it's not a standard they created. Common metric screw threads are ISO.


MCRIPPPer said:
not sure why people call inch-pound system SAE.
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Probably cause they don't know the proper term, usually they just mean "US system". As John mentioned earlier, the proper term for all US measurements is the US Customary Units system but you don't hear this term very much. I don't say it often either. It is not the same as the Imperial Units system although for screw threads & length measurements it's probably the same. For example an Imperial oz is not the same as an US oz but they're close.

The only real importance to me is screw threads, US & metric. I call them American (USA) standard & simply metric. With American standard threads being UNF/UNC & metric threads being ISO metric. There are other types of metric threads as there is with standard threads.
 
FanMan said:
Nobody calls the inch-pound system itself SAE, but people often describe fine pitch inch size bolts as "SAE", because SAE set standards for them for automotive use.
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Point. However, the original reference was to the building trades.
 
Do you guys have any idea just how tempting it was to respond in this post by saying only this:



Metric?? What in blazes is 'metric'?? :noidea:




He heeeee.....


:gtg:
 
I'm all confused at the best of times, but I'm starting to learn US SAE having been metric (to Imperial parents) most of my life. The thing I struggle with is figuring out what fractional drill or end mill is bigger or smaller than another. 5/64 vs. 3/32 is easy, just multiply the latter by two and 6 is bigger than 5. But what about 9/64 and 1/8? And so on. I'm crap at math and for big numbers I have to take my gloves AND socks off!
 
John Hasler said:
Society of Automotive Engineers to build houses?
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I was wondering how long someone on here recognized what SAE really stands, ( or used to ) stand for. LOL &,..... Autocad uses imperial or metric to designate the choice of drawing formats.

Numbers are readily converted between systems with the new technology (pocket calculators, cad-cam etc,) The US is behind the norm but, with any luck, we'll survive all of this.
 
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