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NASCAR changes lug nut rule after Tony Stewart's decry of safety measures

Related Topics: Lug nut, NASCAR, Safety (firearms)

NASCAR is acting on Tony Stewart's criticism of loose safety measurements regarding the use of lug nuts with a new rule change.

In a memo sent to teams Monday, the governing body informed organizations that all five lug nuts must be installed in a safe and secure manner for all three national series or risk being called back into the pits during the race.

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"NASCAR has been closely monitoring the aggressive strategies on pit road," Scott Miller, NASCAR vice president of competition, said in a statement. "Safety is an area we do not take lightly, as our record has clearly indicated.