74 Duster brake Rotor - studs - help

74 Duster front brake Rotor - studs??? My 74' Duster had really bad disc brake rotors and like a dumb *** I tossed them before pulling out the pressed in lug nut studs. My new disc rotors need new studs....Can anyone point me to the correct lug nut studs for a 74' front disc brake rotor.

Thanks guys!

Alex