Questions regarding maximum yield stress for standard hardened steel dowel pins
Single shear strength is 130,000 psi.
here is the solution
your pin area shall be a value the divide the force aplied to be less than 130,000 PSI by safety factor
so so if the pin has 1 Suare inch it will break when you apply a force bigger than 130,000 Pounds , or is the safety factor is 0,5 it will support up to 65,000.
Hope you understand it
you shall comply wit this ecuation
[LOAD divided by AREA] shall be less than [single shear strenght by safety factor] [ 0.5 to 0.3]