A Brief History of the Invention of Screws

The first person to describe spirals was the Greek scientist Archimedes (about 287 BC - 212 BC). Archimedes spiral is a huge spiral in a wooden cylinder, used to lift water from one level to another and irrigate the fields. The real inventor may not be Archimedes himself. Maybe he just described something that already exists. Perhaps it was the craftsmen of ancient Egypt who designed it to irrigate both banks of the Nile.
In the Middle Ages, carpenters used wooden nails or metal nails to connect furniture and wooden structures. In the 16th century, nail workers began to produce nails with spiral wires, which can connect things more firmly. That is a small step from such nails to screws.
Around 1550 A.D., the metal nuts and bolts that first appeared as fasteners in Europe were made by hand on simple wooden lathes.
The screwdriver (screwdriver) appeared in London around 1780. The carpenters found that tightening screws with a screwdriver can fix things better than knocking with a hammer, especially when it comes to fine-grained screws.
In 1797, Mozley invented an all-metal precision screw lathe in London. The following year, Wilkinson made a nut and bolt manufacturing machine in the United States. Both machines can produce universal nuts and bolts. Screws are widely used as fixing parts because a cheap production method was found at that time.
In 1836, Henry M. Philips applied for a patent for the screw with cross slot head, which marked a significant progress in the technology of screw base. Different from the traditional slotted head screw, the edge of the head of the cross-recessed head screw of the cross-recessed head screw. This design makes the screwdriver automatically centered and not easy to slip, so it is very popular. Universal nuts and bolts can connect metal parts together. Therefore, by the 19th century, the wood used to build machinery and houses could be replaced by metal bolts and nuts.
At present, the role of screws is mainly to connect two workpieces and play the role of fastening. Screws are used on general equipment, such as mobile phones, computers, cars, bicycles, various machine tools, equipment, and almost all machines. Screws are indispensable industrial necessities in daily life: such as tiny screws used in cameras, glasses, clocks and watches, and electronics; General screws for TV, electrical products, musical instruments, furniture, etc