I think I know what you're talking about. They are actually one lug nut with a tin cover made onto the nut. Like newman said a tire shop can fix you up. Just FYI, many of these fail due to being torqued too much or someone using an impact wrench on these and again over-torqueing (rattling up). A 5/8" stud with an aluminum wheel should be torqued to 130-140 ft. lbs. A 9/16" stud should be 110-120 ft. lbs. Don't forget to recheck torque on aluminum wheels several (I do 5 times over the course of 750 miles) any time the wheel as been removed for any reason. You'll find they can be tightened up for the first 4 retorquings. HTHs rockin'