Bolts and nuts
Unlike replica wheels, most wheels on the market do not fit with original nuts or bolts of your vehicle.
First, it is important to understand the difference between bolts and nuts. The bolts are used for European vehicles such as Audi, BMW, Mercedes, etc. Unlike nuts, they are bigger because European cars do not have studs. That is why the price is higher. For chrome bolts, the set is sold for 60$ and black bolts, it is 80$ per set.
Other cars, like Japanese or American, for example, are equipped with nuts because the nets are already in place. A set of chrome nuts sells for 40$, and 60$ for the black nuts.
It is important to equip your wheels with the whole installation if it is required. The fact of not having one can bring aesthetic consequences or even mechanical
Generally, the holes in the wheel are smaller and narrower than those of an original wheel. Having nuts or bolts with the original key provided by the manufacturer can make that they either won’t fit or it may be that the key will be rubbing on the rim, which can scratch the wheel. Moreover, if you happen to have a puncture and that you keep your original nuts/bolts, the supplied key is likely to be too big, so you will not be able to remove the default wheel.
In addition, as mentioned, vibration problems can be felt if the bolts are not adapted to the wheel.