Carbon Steel GB/T 18230.2-2000 Large hexagon bolts with short thread for class 8.8 and 10.9

Large hexagon bolts with short thread for class 8.8 and 10.9 bolted structures is a high-performance, high-strength fastener product. The bolt thread specifications range from M12 to M36, with pitch varying from 1.75mm to 4mm. The strength grades include 8.8 and 10.9, and it is made from high-quality carbon steel or alloy steel, possibly undergoing heat treatment to achieve the specified mechanical properties. To enhance corrosion resistance, the bolt surface may undergo treatments such as zinc plating or phosphating.
 
Product Characteristics

• Large hexagonal head design: the bolt head is symmetrical shape of six planes, which is easy to tighten with tools such as wrenches and improve construction efficiency.
• Short thread length: The distance from below the bolt head to the thread termination point is short, which may be for material savings, to accommodate a specific installation space, or to simplify production processing.
• Quality material: These high-strength bolts are usually made of high-quality carbon or alloy steel and may be heat treated to achieve the specified mechanical properties.
• Surface treatment: The surface of the bolt may be galvanized, phosphating and other treatments to enhance its anti-corrosion ability and extend its service life.

 
Application

• Manufacture of bolted steel structures: The standard large hexagon head bolts are particularly suitable for the manufacture of bolted steel structures, which need to withstand large loads and therefore require high strength and stable connection properties of the bolts.
• Bridges and construction: In the field of bridges and construction, in order to ensure the stability and safety of the structure, these bolts are often used, and these bolts are able to provide reliable connections and withstand forces and pressures from all directions.
• Mechanical equipment: In the manufacture of mechanical equipment, the standard large hexagonal head bolts are also widely used. They are used to connect the various components of the equipment to ensure the overall stability and safe operation of the equipment.
• Automotive industry: In the automotive industry, many parts need to be connected by bolts. The bolt is widely used in automobile manufacturing because of its high strength and stable connection performance.
• Aerospace: The demands on connectors are extremely high, and the bolts are used in aerospace manufacturing, where they need to withstand extreme temperatures and pressures.