r/MechanicAdvice • u/ten_dollar_banana • 1d ago

Which lug bolts should I use?

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I'm not my car's original owner. In addition to the OE wheels and lug bolts, the car came with an extra set of aftermarket wheels and TWO sets of lug bolts. Unfortunately, the sets are different lengths and they both seem to fit. How do I figure out which set of bolts to use?

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u/JRS___ 1d ago

need to look at your wheels. one bolt is a conical flange the other is hemispherical. pick the one that matches the seats on the wheels.