Six crew chiefs across the NASCAR Cup, Xfinity and Truck Series were fined for not having properly installed lug nuts.
In the Cup series, crew chiefs James Small (for the No. 19 team of Martin Truex Jr.) and Chad Johnston (No. 42 Matt Kenseth team) each were fined $10,000 for the lug nut infraction.
In the Xfinity Series, crew chiefs Alexander Yontz (No. 11 Justin Haley team), Jeff Meendering (No. 19 Brandon Jones team) and Bryan Smith (No. 26 Colin Garrett team) each were fined $5,000 for the lug nut infraction.
In the Truck Series, crew chief Paul Clapprood (No. 44 Ross Chastain team) was fined $2,500 for the infraction.
NASCAR previously announced that crew chief Richard Boswell, car chief Nicholas Hutchins and engineer Daren Vanderley were suspended four races each after ballast fell out of Chase Briscoe‘s car.
NASCAR also previously announced that the No. 51 Kyle Busch Motorsports team was docked 10 owner points for the track bar mount and support not meeting specifications.
NASCAR Penalty report from Miami originally appeared on NBCSports.com