Wheel Vintiques quality

I bought a set of the standard rims in 15 x 7 x 4.25 back space from Summit.
The box said they were 4.25" back space.
Rims looked real nice, cleaned them up a painted them bc/cc.
Then noticed #$%@& they were actually 4.5" back space, sold them at a loss, because they would not fit my car.