There were three lug nut penalties issued after the Michigan race weekend.
In Cup, #41-Suarez and #37-Buescher each had one lug nut loose. Their crew chiefs, Bill Scott and Trent Owens respectively, were fined $10,000.
In XFINITY, race winner #2-Tyler Reddick had one loose lug nut. His crew chief, Randall Burnett, was fined $5,000.
In addition, Taylor J. Morse was suspended infidelity for violation of NASCAR’s Substance Abuse Policy.
See the full report here.