The number of flange bolt Socket Screw Allen Bolt Socket head cap screw DIN912 on the wheel and the car really have a relationship?
Have you ever noticed how many screws are on your car's wheels?
Did not pay attention did not matter, then you have heard of "the more wheels screw, the more advanced the car" This argument is not it? Xiao Bian saw in some forums some people say so.
The truth is so true?
Indeed, many low-grade A-class car wheels are four screws, B-level or C-level car with five screws are used, it seems below
But the car's grade and the number of wheel screws is actually not necessarily linked.
There are 6 screws:
There is no way to see the number of screws:
You see, the above three examples enough to show that more wheel hub screws may not be luxury cars, it may be garbage trucks. People F1 racing wheels also only one screw it, you can say that it is a low grade car?
Why is there such a difference? In fact, this is related to the principles of physics, engineering and mechanics.
How many screws the wheel, the main screw mechanism, axial force, thread torque, thread friction coefficient, the friction coefficient of the end face torque and so on. Usually this will be combined with the body weight, design shape and power parameters to consider the end use a few screws.
Some people may say that four screws are cut corners, in fact, as long as the conscience business, there is no possibility of cutting corners, whether it is four or five screws, manufacturers have verified the strength of compliance, and after numerous tests of choice.
