Disc Wheel Studs

OK I had all new studs, had bought them years ago. Turns out that when I ordered the new studs 2 days ago becasue I thought I had the wrong ones, they are the same Dorman studs I already have.

The issues are they are very snug. Most times a drift, punch or double nut impact will pull them in. I can not.

When I complete pulled all the studs out I think they are going into the hub past the knurling, ut there is a shoulder the last about 3/8" that is larger yet. That is what is stopping them from going all the way in. So are these newer studs wrong or what? The ones i have are 2 days old and 6 years old, all have the same shoulder and same isues. Wont go all the way in.

I have not tried a press yet. Maybe that will work, just do not know if I should put that much pressure on them to drive them in.

Any ideas? please help...thanks