The history of bolts and their use in life

Bolts and nuts are the most common type of fasteners, united by the name hardware. Having an inconspicuous appearance, bolts have a very serious impact on the quality and reliability of equipment and mechanisms, furniture and other products. That is why, in the process of selecting bolts, it is necessary to proceed primarily from their quality and reliability.History is silent about when the first bolt appeared. It is known for certain that bolted joints were already used in Ancient Rome, which is confirmed by the findings of archaeologists, while the nut, now used as an indispensable companion of the bolt, appeared much later. As for the first bolts, they were made of non-ferrous metals, for example, bronze, and in some cases precious metals were used. It wasn't until the 15th century that a pair of bolts and nuts appeared, which were used to create powerful knight armor.In the same period, the first machines designed for the production of bolts were also designed. Its author was Leonardo da Vinci. Taking into account the fact that the production accuracy of that time left much to be desired, for each bolt, which received the name screw due to the presence of a thread, its own nut was used, which is not interchangeable with other similar products.It was possible to solve the problem of mass production only at the beginning of the 19th century, when the cold manufacturing technique appeared, and engineers began to create unified design documents for products. Only after that, it was possible to achieve mass use of bolted joints.Modern bolts are used in all industries without exception, and taking into account the specifics of individual areas, they have a developed classification. The furniture industry uses furniture bolts, agriculture is characterized by the use of ploughshare bolts, and so on. Machine-building bolts in Nizhny Novgorod are consumed in large quantities by the GAZ plant, which produces commercial vehicles. There are also products with increased durability and resistance to aggressive environments.Often, when using bolts and nuts together, washers are used that are installed between these two products. In some cases, they are coated with zinc. The use of a washer provides increased fastening reliability, completely eliminating the possibility of spontaneous unscrewing of the nuts during operation. It is especially important to use washers in joints that have high reliability requirements.Metric bolts with special threads are a special kind of fastening material. Such products are characterized by ease of use and ease of replacement of parts. Therefore, it has found the most extensive application in economics.Any bolt or other fastening material provides a sufficient degree of strength and reliability only if the technology was fully followed during its production. Compliance with standards is equally important. In their absence, the cost of using fasteners increases many times. Therefore, in the process of buying bolts, it is worth paying attention to the manufacturer of the product and the standards according to which it was manufactured. A 130% welcome bonus awaits new 1xbet users, capped at €130. This promotion enhances your initial deposit, giving more resources for sports wagering and casino play. Simply create an account and make 1xbet promo code today to activate the bonus. Various payment methods are available for convenience. The promotion period is limited. Full terms available on the website.