The specification describes the configuration of the mounting holes on a vehicle’s wheel hub. Specifically, it defines the number of bolt holes, their diameter, and the diameter of the circle they form. For a 2005 Lincoln Town Car, this specification is 5×114.3mm (or 5×4.5 inches), indicating five lug nuts positioned on a circle with a diameter of 114.3 millimeters (or 4.5 inches).
Adhering to this specification is critical for ensuring proper wheel installation and vehicle safety. Incorrect wheels, those not matching the specified configuration, can lead to wheel detachment, damage to the vehicle’s hub, and potential accidents. The configuration ensures balanced distribution of force, preventing undue stress on individual studs. Understanding this is crucial for selecting the right aftermarket wheels, tires, and related components. Historically, this particular configuration has been a common standard across several Ford and Lincoln vehicles, influencing aftermarket availability and interchangeability.
