I bought this nema17 bracket for my nema17 stepper. I aligned all four (front) holes on the stepper with the bracket holes. The 2 bottom holes (near the base of the bracket) is where the 2 screws went in all the way, but the top screws didnt. Is this normal? Do I just get shorter screws?

NEVERMIND, I just saw that it was the 2 holes where I had taken out the back screws on the stepper when I tried to fix it onto a home made aluminum bracket. When I realized I had to front mount it instead of back mount it, I bought the front-mounting brackets online. But I had successfully removed 2 of the back screws on the stepper at first, however I tried to hard to remove the other 2 back screws that I stripped the screwheads on those 2 backscrews and those are the ones that are still in the stepper and therefore the ones where the front screws dont fit.

I did find shorter screws for those blocked holes.