Bolt or Lug pattern is the dimension of an imaginary ring created by the centers of the wheel lugs.
Bolt patterns can be 4 to 8 and either holes or studs. The bolt pattern is made of two numbers - the first one implies to the number of bolt holes or studs that are on the vehicle, while the second one gives information about the distance between them in either inches or millimeters.
A bolt pattern of 4x150 indicates a 4 bolt pattern on a circle with a diameter of 150mm .
If you need assistance measuring your bolt pattern please click here