Steel Structure Bolts
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10.9 grade steel structural bolts with large outer hexagon
Steel structural bolts are high-strength bolts and also a type of standard component. Good fastening performance, used in steel structures and engineering to enhance the fastening effect. On general steel structures, the required steel structural bolts are grade 8.8 or above, as well as grade 10.9 and grade 12.9, all of which are high-strength steel structural bolts. Steel structural bolts are mainly used in steel structural engineering to connect the connection points of steel structural steel plates. The large hexagonal steel structural bolt consists of one bolt, one nut, and two washers.
Black: Blackening is a common method of metal heat treatment. The principle is to form an oxide film on the surface of the metal to isolate air and achieve the purpose of rust prevention. Blackening is a common method of metal heat treatment. The principle is to form an oxide film on the surface of the metal to isolate air and achieve the purpose of rust prevention.
Steel structural bolts are generally made of carbon steel, stainless steel, copper, and copper alloys. Carbon steel: Low carbon steel, represented by materials such as Q235; Medium carbon steel, represented by materials such as 35 and 45. Alloy steel: represented by materials such as 40 chromium and molybdenum. Stainless steel: represented by materials such as 0Cr18Ni9TiMn. Copper and copper alloys: purple copper, brass (H62, H65, H68)
Steel structural bolts are mainly used to connect and fix different components in steel structural engineering, such as beams, columns, connecting plates, and supports. They play a crucial role in steel structures, as the quality and strength of bolt connections are directly related to the stability and safety of the structure.
Steel structural bolts can be classified according to standards into A-grade, B-grade, and C-grade bolts, corresponding to ordinary bolts, high-strength bolts, and high-strength large hexagonal head bolts, respectively. A-grade bolts are mainly used for light load steel structures, such as some small sloping roof structures, sunshade frames, etc; B-grade and C-grade bolts are mainly used for medium and heavy-duty steel structures, such as large structures such as factory buildings, stations, bridges, etc. In addition, steel structural bolts are also divided into ordinary bolts, high-strength alloy bolts, anchor bolts, and prestressed bolts. High strength alloy bolts are suitable for high-strength steel structure connections, anchor bolts are mainly used to connect steel and concrete structures, and prestressed bolts can adjust the initial stress state of the structure by controlling the pre tension. The application range of steel structural bolts is very wide, not limited to the construction field, but also includes multiple fields such as machinery, automobiles, bridges, pipelines, tower and mast structures, heating furnace structures, etc. When selecting steel structural bolts, factors such as component thickness and type, component spacing, bolt strength, and environmental conditions need to be considered.
