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.
unwind. 1  to wind off or undo (something wound) 2  uncoil. 3  to straighten out or untangle (something confused or involved) 4  to make relaxed, less tense, etc. 5  to close out (a position in a securities or commodities trade) to sell (a stake in a company, business venture, etc.)