4pcs 38mm ( 1.50" ) Hubcentric (66.1 Hub) Wheel Spacers For Nissan Altima Maxima 350z 370z Infiniti G35 G37 Q50 4x Brand NEW Wheel Adapters Vehicle Bolt Pattern 5x4.5 Wheel Bolt Pattern 5x4.5 Hub Bore 66.1mm Thickness: 1.50 Inch (each spacer) Thread Pitch: 12x1.25 HUBCENTRIC Wheel Spacers With Wheel Centric Lip T6 6061 Billet Wheel Adapters 12.9 Grade Steel Threads Mainly used to give your vehicle an agressive stance, and will help with any clearance issues (if present) CNC Machined Usings Aerospace Aluminum