Quote:
Originally posted by Dave Stones
do left-handed screws actually exist? i havent stepped foot in B & Q for a while 
im thinking buying a motorized screwdriver would solve all problems between the righties and us southpaws hehe
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You do occasionally come across left-handed threads. A little memory at the back of my mind keeps insisting that it may be to prevent nuts coming undone due do the direction that the component that they belong to is rotating (if you see what I mean).