Following the race weekend at Circuit of the Americas, the only penalty was a single lugnut penalty to the Xfinity team of Justin Haley.
NASCAR Xfinity Series
5/22/2021 (post-race inspection)
Sections 10.9.10.4: Tires and Wheels
Note: Lug nut(s) not properly installed.
Crew chief (Alex Yontz) has been fined $5,000.