The critical parts are the tiny metal brackets (see on the bottom right).
The bolts used seems different from the Tesla. (
See my posting)
I received directly a new set of screws and bolts from Yakima following a Tesla recall.
I don't think I was be able to use a flat wrench, I had to use an Allen wrench.
This a very critical area, and Tesla recommend using a torque wrench.
Also a film protection, with the location of the brackets on the roof should be installed, should be included.
And the eBay model don't seem to be lockable.
From other threads stories, a good recommendation if you are not comfortable doing the installation,
to mitigate any glass damages, is to have the rack installed at the Service Center for may be $60.