THIS 353483-SET 50 PIECE ( BLACK OXIDE ) BOLT KIT IS NEW AND ARE 5/16 SIZE, SAE FINE THREAD  AND ARE 1 INCH LONG  .FITS. FRONT FENDER, INNER FENDER, SPLASH APRON,AND  HOOD , ECT. FITS ALL 1957 1958 1959 FORD AND MERCURY CARS.  IF YOU DONT SEE WHAT YOU ARE LOOKING FOR LET US KNOW SO WE CAN POST IT ON EBAY.THANKS 317-786 , eight one six four   5/16 SIZE, SAE FINE THREAD  AND ARE 1 INCH LONG