Once the adapter bolts are nice and tight, the cone is fitted and held in place while the spinner is threaded onto the adapter. This right-hand spinner threads on counter-clockwise, whereas the driver-side spinners thread on clockwise. The counter-directional threading helps to keep them on the wheels. The antitheft pins also help to keep things secure. The label on the adapters advises you to use antiseizing compound to make removal of the spinners a bit easier.