Apr. 1, 2015. TDK Corporation has announced that its Hong Kong-based HDD head manufacturing wholly owned subsidiary, SAE Magnetics (H.K.) Ltd.
You use a wrench to screw, or unscrew a bolt. A screwdriver is for screws. Either way you turn it left. Some bolts have reverse threads and would turn the other way to unbolt.
Unscrew the Bulb Holder. The bulbs in your brake light or tail light assembly are held in place using a plug that holds the bulb, that also screws into the light assembly. Follow the wires to the back of the light that you need to replace, that's the bulb holder you want to unscrew.