Info on thread pull out calculations (non SW question)

[BodyBagger]

I know this is a non-SW question but I have googled it and I'm not getting many results.

Can someone explain how to calculate the amount of load required to pull internal threads out of A36 plain carbon steel? Or point me inthe direction of a website that can offer some help.

My current situation:
A36 steel plate 3/4" thick
Grade 5 bolt (1/2-13) with 5/8 depth of thread engagement in the A36 plate. I need to know how much force in lbs-in^2 the threads will hold before failure.

 

[fcsuper]

for future reference, there's an engineering forum on this board at:

http://www.eng-tips.com/threadminder.cfm?pid=404

Matt
CAD Engineer/ECN Analyst
Silicon Valley, CA
sw.fcsuper.com
Co-moderator of Solidworks Yahoo! Group

 

[CorBlimeyLimey]

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