Stainless steel elbow bolt: wān tóu luó shuān English name: bolt with one end bent back, belongs to mechanical parts, cylindrical threaded fasteners with nuts. Bolt: A type of fastener consisting of a head and a rod (a cylinder with external threads), which needs to be matched with a nut to fasten and connect two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
Bolt: A mechanical part, a cylindrical threaded fastener with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten and connect two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
Classification According to the force mode of the connection: ordinary and with reamed holes. According to the shape of the head: there are hexagonal heads, round heads, square heads, countersunk heads, etc. Among them, the hexagonal head is the most commonly used. Generally, the countersunk head is used in places where connection is required.
Bolts are divided into eight grades according to performance level: 3.6, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9, and 12.9. Among them, bolts above grade 8.8 (including grade 8.8) are made of low-carbon alloy steel or medium-carbon steel and are heat-treated (quenching + tempering), commonly known as high-strength bolts, and bolts below grade 8.8 (excluding grade 8.8) are generally known as ordinary bolts. Ordinary bolts can be divided into three grades, A, B, and C, according to the manufacturing accuracy. Grades A and B are refined bolts, and grade C is rough bolts. For connecting bolts for steel structures, unless otherwise specified, they are generally ordinary rough grade C bolts. There are differences in the processing methods of different grades. The corresponding processing methods are usually as follows: ① The bolt rods of grade A and B bolts are processed by lathes, with smooth surfaces and precise dimensions. Their material performance grade is 8.8. The production and installation are complicated, the price is high, and they are rarely used; @C-grade bolts are made of unprocessed round steel, the dimensions are not precise enough, and their material performance grade is 4.6 or 4.8. The deformation is large during shear connection, but it is easy to install and has low production cost. It is mostly used for tensile connection or temporary fixation during installation. Bolts are indispensable in daily life and industrial production and manufacturing. Bolts are also called industrial rice, which shows the wide application of bolts. The application scope of
Stainless steel elbow bolts includes: electronic products, mechanical products, digital products, power equipment, electromechanical mechanical products. Bolts are also used in ships, vehicles, water conservancy projects, and even chemical experiments. Anyway, bolts are used in many places. Especially the precision bolts used on digital products.
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