calc bolt thread strength
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Posted by: Bennie ® 06/15/2009, 06:43:51 Author Profile eMail author Edit

I want to calc which thread is the strongest under a compression load, 1 ½" x6 TPI BSW (OD38.1mm & ID 32.7mm) or M40x2 pitch (OD40mm & ID37.402mm). Both bolts are manufacture from stainless steel 304. According to my calc the 1 ½" BSW have the shortest engagement length of the two.

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: calc bolt thread strength
: calc bolt thread strength -- Bennie	Post Reply	Top of thread	Engineering Forum

Posted by: Kelly Bramble ® 06/20/2009, 17:25:14 Author Profile eMail author Edit

Also see http://www.engineersedge.com/fastener_thread_menu.shtml

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: calc bolt thread strength
: calc bolt thread strength -- Bennie	Post Reply	Top of thread	Engineering Forum

Posted by: Pooch ® 06/16/2009, 07:55:38 Author Profile eMail author Edit

Bennie Calculate the cross section of the thread at the pitch line, times the length of the pitch circle. Pi x D x cross section. Boggs is correct, Machinery's Handbook will be very helpful on this.

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: calc bolt thread strength
: calc bolt thread strength -- Bennie	Post Reply	Top of thread	Engineering Forum

Posted by: jboggs ® 06/15/2009, 18:12:51 Author Profile eMail author Edit

Machinery's Handbook has some great thread strength formulas.

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