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Re: DIN standards for reading?

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Am 19.11.2015 um 18:07 schrieb Ralph Mowery:
> "DaveC" <not@home.cow> wrote in message
> news:0001HW.1BFE327E00023B161112783CF@news.eternal-september.org...
>>> Which DIN?
>>>
>>> RL
>>
>> No one in particular. Am having a friendly disagreement with a friend
>> about
>> what a DIN number means. Does it define things like material, tolerance,
>> finish and hardness or does it include size, thread, etc? In other words,
>> does the DIN number define a particular, specific fastener (including
>> dimension) or only the standards to which that fastener is measured
>> against?
>>
>> I always related DINs to the US MILSPEC standards which generally are
>> standards, not product definitions.
>>
>
> DIN defines the size of things.  Say a bolt with  a certain DIN number
> standard will be so many milimeters long, have a certain number of thread
> pitch per mm.
>
> I don't know for sure, but suspect that it does not mean the bolt will be so
> strong or hardened unless aditional informationis added.
>
> Not that familiar with metric standards, but lets use an American bolt as an
> example.  If you want a 1/4-20 bolt then it will be 1/4 inch in diameter and
> have 20 threads per inch.  It may or may not be hardened, made of
> steel,aluminum or any thing else unless specified.

Not quite. It is not like one DIN-Number == one bolt (or something 
else). Each number defines a certain kind of things, therms and 
everything :-). There is a DIN-Norm for writing a text (i.e. a thesis at 
the university), there is a DIN-Norm for drawing a cirquit diagram, a 
house, a 3D drawing or anything else. Most of them have a EN "in back". 
For example DIN825-1 defines laser safety (yes, I know, this norm is now 
obsolete but I'm too lazy to find new numbers), the adequate European 
Norm is EN60825-1.
Another example: DIN912 defines cylindrical bolts with allen key 
fitting. All of them. Including UNC & UNF i.e. non-metric bolts.

HTH

Waldemar

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DIN standards for reading? DaveC <not@home.cow> - 2015-11-17 19:59 -0800
  Re: DIN standards for reading? Martin Riddle <martin_ridd@verizon.net> - 2015-11-17 23:41 -0500
    Re: DIN standards for reading? Sebastian Suchanek <sebastian.suchanek@gmx.de> - 2015-11-18 07:00 +0100
      Re: DIN standards for reading? Christian Zietz <newsgroup.1001@chz.xyz> - 2015-11-18 08:27 +0100
  Re: DIN standards for reading? legg <legg@nospam.magma.ca> - 2015-11-18 15:55 -0500
    Re: DIN standards for reading? DaveC <not@home.cow> - 2015-11-19 08:38 -0800
      Re: DIN standards for reading? "Ralph Mowery" <rmowery28146@earthlink.net> - 2015-11-19 12:07 -0500
        Re: DIN standards for reading? DaveC <not@home.cow> - 2015-11-19 09:22 -0800
          Re: DIN standards for reading? "Ralph Mowery" <rmowery28146@earthlink.net> - 2015-11-19 12:53 -0500
        Re: DIN standards for reading? Waldemar <waldemar@zedat.fu-berlin.de> - 2015-11-24 17:01 +0100

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