Sr20DE and SR20DET power Steering bolt

OK, this is an odd question. BUT i need the bolt that goes into the Power Steering pump of a SR20DET redtop. I was wondering if the SR20DE pump might be the same as the SR20DET pump… ?

And I think i have a KA24DE bolt which is to small.

Iv Read in a few places that SOME parts May be interchangeable?

Thanks