The person who described the spiral was the Greek scientist Archimedes (c. 287 BC - 212 BC). The Archimedes screw is a huge spiral in a wooden cylinder used to raise water from one level to another to irrigate fields. But the real inventor was not Archimedes himself. He just described something that already existed. Maybe it was designed by ancient Egyptian craftsmen for irrigation on the banks of the Nile.
In the Middle Ages, carpenters used wooden or metal nails to attach furniture to wooden buildings. In the 16th century, nail makers began to produce nails with helical threads, which could connect things more firmly, which was a small step from such nails to screws.
Around 1550 AD, the first metal nuts and bolts that appeared in Europe as fasteners were all made by hand on simple wooden lathes. Hebei Shengxin Fastener Manufacturing Co., Ltd.
The screwdriver (chisel) appeared in London around 1780. Carpenters have found that tightening screws with a screwdriver holds things in place better than hitting them with a hammer, especially when it comes to fine-grain screws.
In 1797, Maudsley invented the precision screw lathe made of all metal in London. The following year, Wilkinson made a nut and bolt manufacturing machine in the United States. Screws were quite popular as fixing parts because a cheap production method had been found at that time.
In 1936, Henry M. Philips applied for a patent for a screw with a cross-recessed nail head. This design makes the screwdriver self-centered and not easy to slip off, so it is very popular. Universal nuts and bolts hold metal pieces together, so that by the nineteenth century metal bolts and nuts were used instead of wood from which machines were built to build houses.
Engaged in fasteners for many years, do you know the origin of screws?
In the future, the fastener industry will become more and more formal, and the threshold for entrepreneurship will become higher and higher. In the future, there will be some large-scale enterprises in the industry, the number of small and medium-sized enterprises will be greatly reduced, and the industry concentration will continue to increase.
About the origin of bolts
2022 12/01