Thread Pull-Out Calculations in A36 Steel

[BodyBagger]

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.

Thanks in advance,
Drake

 

[desertfox]

Hi BodyBagger

Look in the machinery's handbook


regards

desertfox

 

[CoryPad]

The equations are in FED-STD-H28/2B SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 2 UNIFIED INCH SCREW THREADS- UN AND UNR THREAD FORMS

available at:

http://assist.daps.dla.mil/quicksearch/

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[CorBlimeyLimey]

http://www.tribology-abc.com/calculators/e3_6f.htm

 

[BodyBagger]

Thanks to everyone for their suggestions.

CBL - That site is a goldmine of information, thank you.