Wheel studs are causing problems!!!

The ones in the picture are my old stockers, so they aren't. I wasn't aware that they would need specific lug nuts. I was looking on the billet specialties website and saw some that would probably work with the stock studs.

Think these are what I need?
http://www.billetspecialties.com/wheels/wheel-accessories/lug-nuts/mag-shank-open-end/

So essentially all that effort to change out wheel studs wasn't needed. So do you think I'll get enough threads with them? Says they are for the street lites which is what I have. So the 1/2 20? And i can get a 1/2 shank and a 3/4 shank, I assume the 3/4 shank would work.
Canadian Tire has the pull-through lugs (Garnett),they may have the sizes you need.It,s what I used on my Weld rims..much easier than ordering,just to find out wrong size.:violent1: