I am doing some work on a 59 Vette now for a friend. He had a catolog from a company Paragon, I will try to find the number later, they had all of the fasteners listed in the back of the catalogs, with markings and applications.
John 348/348HP
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John,
1931 4 Door Sedan
1953 2 door 150 Sedan
1954 4 Door Belair Sedan (parts car)
1960 2 door Impala Hardtop
1962 2 door Impala Hardtop
1962 2 Door Biscayne Sedan
1985 Caprice Wagon (Too nice to call unrestored)
1990 Cavalier 4 small doors