The humble lug nut is a critical player in vehicular safety. Too loose and your wheel could part company with the axle and roll on down the highway on its own — yikes. In fact, recall that some Ford ...

Jeff Majchrzak’s voice was equal parts frustration and amusement. “I’ve got swollen lug nuts,” the retired Detroit firefighter said in his voicemail. “Seriously. I don’t know what to do.” I shushed my ...