Jason Bradwell's 365/366 Photo a Day Blog

A screw used as a threaded fastener consists of a cylindrical shaft, which in many cases tapers to a point at one end, and with a helical ridge or thread formed on it, and a head at the other end which can be rotated by some means. The thread is essentially an inclined plane wrapped around the shaft. The thread mates with a complementary helix in the material. The material may be manufactured with the mating helix using a tap, or the screw may create it when first driven in (a self-tapping screw). The head is specially shaped to allow a screwdriver or wrench to rotate the screw, driving it in or releasing it. The head is of larger diameter than the body of the screw and has no thread so that the screw can not be driven deeper than the length of the shaft, and to provide compression.

Screwed can also mean to be in serious trouble, and has nothing at all to do with us finally rescheduled to make the move at work to our new location this coming weekend, attempting to get all our servers moved across town in the back seats of our cars, hoping nothing breaks and it all boots back up and is reconnected correctly while minimizing downtime for our critical internal and client systems. Nothing at all to do with that.