Specs verified against manufacturer data
Bolt pattern
5x120
Center bore
67.1 mm
Factory wheel sizes
18-20"
Thread
M12x1.5
Torque
110 lb-ft
The Buick Regal uses a 5x120 bolt pattern with a 67.1mm center bore. Factory wheel sizes range from 18-20". When shopping for wheels, ensure the rim's center bore is at least 67.1mm (a hub-centric ring can adapt a larger bore down). Factory torque spec is 110 lb-ft. Use M12x1.5 lug hardware. Always confirm torque and hardware against your owner's manual before installing.

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