It’s the mob approach to vandalism.

Five members of the Bonanno crime family pleaded guilty in Brooklyn federal court yesterday to a caper that left two teenagers hospitalized with stab wounds after windows were busted in a mob-connected Queens restaurant in 2004.

In keeping with the Mafia family’s bumbling reputation, the mobsters beat and knifed the wrong kids after an associate from another crime family busted up the Napa & Sonoma steakhouse near the Whitestone Bridge, according to the feds.

Acting capo Anthony Pipitone, 37, his brother, Vito Pipitone, 28, Frank Terzo, 25, and Joseph Spatola, 35, admitted they chased down a car in Queens that they thought contained two men who vandalized the restaurant.

Terzo’s dad, Natale Terzo, 53, pleaded guilty to lying to a grand jury about the vandalism.