[sdiy] Mounting hole size for switch - can't seem to get from datasheet

[Graham Atkins]

Basically yes,

The 'M' number is the basic thread diameter, an M6 washer
will fit over an M6 screw thread and an M6 nut will fit the thread
although the A/F (Across Flats) dimension of the nut is actually 10mm...

It follows that when you want to tighten a M6 hex head bolt you
use a 10mm spanner or socket. You can find data tables for
most threads with the relevant information.

Graham

> So - just out of curiosity...
>
> When someone specifies an M6 (or M3 or whatever) washer.
>
> Is that just saying it will fit over an M6 thread? I'd always  
> presumed it was diameter.
>
> Cheers,
>
> Justin
>
> -----Original Message-----
> From: Graham Atkins [gatkins at blueyonder.co.uk]
> Received: 30.06.2009 21:18:07
> To: Justin Owen
> Cc: Danjel van Tijn; synthdiy DIY
> Subject: Re: [sdiy] Mounting hole size for switch - can't seem to  
> get from datasheet
>
> Just having a Google, 0.75mm is the thread pitch used for the Metric
> Fine
> system as opposed to 1.00mm for standard metric threads :-
>
> http://mdmetric.com/tech/thddat3.htm
>
> Graham
>
> On 30 Jun 2009, at 19:57, Justin Owen wrote:
>
>> From: Danjel van Tijn [danjel at gmail.com]
>>
>>> whoops I was being dumb. 5.25mm is only if you plan to tap the hole.
>>> M6 is a 6mm hole (The '6' is for the size in mm)
>>
>> 0.75mm might refer to the thickness of the supplied hex nut.
>>
>> ...I could be wrong though.
>>
>> Justin
>>
>>
>>
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