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screw thread torque calculations 1

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metmach

metmach

Mechanical
Apr 28, 2003
1
Is there a formular for working out the torque required for specific thread sizes. this includes thread pitch and thread diameter. TYI
 
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If you are in the UK there is a British Standard that provides such a method (BS3580).

One of the best references I have found for bolting issues is by John H Bickford - An introduction to the design and behaviour of bolted joints (ISBN: 0-8247-8167-8 published by Marcel Dekker inc). This also has suitable methods.

Regards
Mike
 
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Yes there is a formula. You can view it here:

faq725-536

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
 
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Anyone have, or knows access to, a good chart that cross-references metal surface roughnesses for DIN, ISO, and ANSI?
 
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