use an aftermarket set of lugs from Gorilla or McGard. They also have just the locks if you want to go that route. With Gorilla lugs every lug is a lock.
'15 Z/28 #325 black a/c & stereo. 2:11 VIR Full 1:45.531 Summit Point Shenandoah Circuit
Advanced Induction cylinder heads & B-3 cam by Race Proven Motorsports.
'12 ZL1 10.52@131 1.55 60' 2:13 VIR Full (sold)