These Titan Wheel Accessories 1 Inch hubcentric wheel spacers are designed with a 6x5.5 (6x139.7) bolt pattern . 77.8mm hub bore and 12x1.25 thread pitch for Infiniti QX56 . Nissan Armada and Titan. They are machined from T6 6061 billet aluminum . making them both lightweight and durable. These spacers will improve the stance of your vehicle . providing a more aggressive look while also adding additional clearance for aftermarket brake and suspension parts. They also allow for larger wheel and tire combinations to be installed . giving you more options for customization. These spacers are easy to install and come with all necessary hardware.