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The tightening torque on wheel nuts or bolts doesn't stretch bolts. A torque wrench is used to apply even tightening to all nuts or bolts on aluminum rims that can deform under the contact area if over tightened as well as distort drum or disc rotor. Less tightening torque on aluminum rims can result in nuts or bolts loosening while driving, a safety hazard....


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It's really a property of both, but the bolt is the more important of the two. As you tighten the nut onto the bolt, the parts actually distort slightly. When you tighten a lug nut onto a bolt, the bolt actually stretches, similar to a spring or rubber band, but on a much smaller scale. This stretching creates tension that helps ensure the connection will ...


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