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Why Do Different Vehicles Have A Different Number Of Lug Nuts?

Posted by on 5/13/2016 to Wheel Adapters

If you've been browsing around on SpacerAdapters.com, you've probably noticed that we sell quite a few different kinds of wheel spacers and adapters. 


From hubcentric wheel spacers to universal wheel spacers, and wheel adapters for fourfive, and six lug wheels, we've got all the accessories you need.


Lug nuts are the heavy-duty fasteners used to keep a wheel secured tightly to a vehicle. Without lug nuts, it would be very easy for a wheel to rotate completely off of an axle, causing incredible damage to the vehicle and driver.  


So why do some cars and trucks have a different number of lug nuts than others? Wouldn't it just be easier if all vehicles had the same number? And how do you know which wheel adapters to purchase for your vehicle?


We decided to investigate the mystery of the lug nuts to find out exactly what criteria are used to decide whether a vehicle wheel gets four, five, or six lug nuts.


Forces On The Wheel


Accelerating, turning, and braking all exert a tremendous amount of force on the wheels of your vehicle. The number and dispersion of the lug nuts are directly related to how much of this force is likely to be received by the wheel during these maneuvers at various speeds. The last thing you want is to slam on your brakes and have your wheel snap off!


Here’s how Mario Hirz, of the Graz University of Technology, explains the differing number of lugnuts on various vehicles:


“In general, heavy cars with high torque engines require more lug nuts with increased diameter…[In] personal cars, 3 to 5 lug nuts are standard; [in] light and heavy trucks a higher number occurs.


“When calculating lug nuts, it has to be considered, that the forces in direction of the screws have to be well dimensioned, so that all the acting forces at the wheel can be taken over by the friction-based force at the surface between the rim and the wheel-carrier…”


So that’s why sports cars and trucks are likely to have a higher number of lug nuts than passenger vehicles, and why it’s very important to count your lug nuts before ordering wheel adapters!


Do you have additional questions about which wheel spacers or adapters are right for your vehicle? Contact SpacerAdapters.com today!
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