Exhaust stud/nut question

Tsupra04

Supra Number 5
Aug 7, 2011
21
0
0
Stewartstown, PA
Hey - I am installing a stock exhaust manifold on my 7MGTE, and I had a bunch of crap studs from my tear down. So I got replacement studs that are shorter and came with regular brass colored nuts (giggety - for all you Quagmire fans) instead of lock nuts. I doubt stock lock nuts will work because there is not enough thread showing with the manifold on. Anyone have opinions on just using the brass nuts? Should I go back and get longer studs and new lock nuts?

Pic of what I am talking about:

Rebuild Progress 07-14-13 (1).jpg