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Minimum Thread Engagement

The thickness of a wheel can differ from original equipment wheels to aftermarket wheels. For that reason, it’s critical to verify that the lug nuts will properly engage the threads. Refer to the chart below to determine the number of turns, or the depth of engagement, typical for your stud or bolt size.

Bolt/Stud Size Number of Turns
M14x2.0 7
M14x1.5 9.5
M14x1.25 11
M12x1.75 7
M12x1.5 8
M12x1.25 9.5
1/2"-20 10
5/16"-18 6
7/16"-20 8.5
9/16"-18 10

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