Minimum Thread Engagement for Wheel Nuts
Lug nuts, lug bolts, and wheel locks should always be tightened to the recommended torque specifications found in your vehicle's owner's manual. Safe and proper installation requires using the correct tools and procedures. This will prevent over-tightening the wheel fasteners, stripping the fastener threads, and stretching the studs.
The thickness of a wheel can differ from original equipment wheels to aftermarket wheels. For that reason, it’s critical to verify that the wheel nuts or 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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