is anybody running cragar s/s on their cutlass if there is anybody, really need help finding out what kind of nuts to buys to put them on properly.. because the regular nuts cant be used on this type of rims.. i know they need to be mag style nuts but dont knw how long.. do they sell them at local auto parts like autozone napa o rilleys etc?? plz really wanna put them on my car but dont wanna have safety issues.. ooh and they are 15x8 all around cost me 80 with tires couldnt pass dat deal !!!