NASCAR has fined two crew chiefs for unsecured lug nuts last weekend at ISM Raceway.
In the Cup Series, Luke Lambert was fined $10,000 for one unsecured lug nut on Ryan Newman‘s No. 31 Chevrolet.
In the Xfinity Series, David Elenz was fined $5,000 for one unsecured lug nut on Tyler Reddick‘s No. 9 Chevrolet.
There were no other penalties announced.