NOS carb mounting bolts Chevy Corvette Chevelle Camaro 4bbl quadrajet

These are a set of NEW carbertor screws for Rochester carbs  These are correct for Chevrolet engines.  These have the correct phosphate plating, and the correct head markings.  

This fits the following models:

Corvette Chevelle el camino malibu impala caprice biscayne camaro monte carlo nova chevy ss rs/ss  V8 302 307 350 400 396 454 427 327 from 67-88