In the middle ages, the carpenters use dowel or metal nails to connect the furniture and wood structure buildings. In sixteenth Century, the workers began to nail nails with spiral line production, these nails can more firmly connected things. It was a small step from the nails to the screws. In the late eighteenth Century, screws were widely used as a fixture because a cheap method of production had been found.
Screwdrivers appeared in London around 1780. The carpenters found that tighten screws with a screwdriver than by hammering, things can get better fixed, especially if the titanium alloy screw is more such.
