They are flanged 10mm x 1.0, partially threaded, grade 12.9 bolts.

Try going directly to a Dodge/Chrysler parts counter and tell them it's for a Dodge Neon.

If you have the bolts that originally came out, and they are not damaged, then just re-use them. Everyone online will preach to replace them, but it's not necessary if they are in good shape.