Flat head hexagon bolts
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4.8 grade 8.8 grade 10.9 grade flat head hexagonal countersunk head hexagonal bolts
The definition of an internal hexagonal flat head screw refers to a screw with an internal hexagonal head and a flat head. The professional name for the screw industry is called a flat cup, which is a relatively simple overview. It is also called an inner hexagonal round cup, an inner hexagonal flat head bolt.
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.
Electroplating: If the hexagon socket flat head screw is made of iron, it generally needs to be electroplated. Electroplating can be environmentally friendly or non environmentally friendly, and non environmentally friendly refers to ordinary electroplating. Environmentally friendly electroplating methods include environmentally friendly blue zinc, environmentally friendly colored zinc, environmentally friendly nickel, environmentally friendly white zinc, etc. Non environmentally friendly electroplating methods include black zinc, white zinc, colored zinc, white nickel, black nickel, black coating, etc.
The material of steel structural bolts generally includes carbon steel and stainless steel. 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.
The use range of hexagonal flat head bolts is very wide, including not only mechanical manufacturing, construction, automotive, aerospace industries, but also electronics, medical and other fields. In the assembly of electronic boards, small hexagonal flat head bolts are widely used, which tightly connect components and equipment, and have good seismic and compressive performance. In the production of medical devices, hexagonal flat head bolts are used as reliable and stable fasteners to ensure the normal operation of machinery and equipment.
As a common fastener in mechanical structures, it has the characteristics of simple structure, good firmness, and convenient use. In applications in different industries, it plays an important role in connecting and ensuring. Therefore, in mechanical manufacturing and equipment assembly, hexagonal flat head bolts are indispensable. Reliable brands that meet specifications, strength, and materials should be selected, and quality verification should be carried out to ensure the safety and stability of the equipment.
