A wedge is a double sided screw basically. Therefore, the difference is the number of sides.
Chat with our AI personalities
If used properly, a screwdriver is a wheel and axle combination. If you use it to pry things, it can be a lever and if you pound it into something it serves as a wedge. A screw is a wedge with an incline plane.
screw thread are single threads which means they are not double
A machine screw typically has a slotted or Phillips drive whereas a cap screw typically has a socket or torx head.
A wedge and a inclined plane
A nail has a smooth straight shaft and a flat head that requires a hammer to pound the nail in. A screw has rivets on the shaft and the head has a shape to it so a screwdriver is needed to screw in the screw.