Hexagon socket screws are divided into grades 4.8, 8.8, 10.9, and 12.9. these specifications.
Hexagon socket head bolts are divided into cylindrical head socket head bolts according to the head, which are the most commonly used and there are many types. According to the material, there are iron, namely carbon steel and stainless steel. Stainless Steel Bolts also have stainless steel SUS304, SUS202 and so on.
Hexagonal Stainless Steel Bolt has a wide range of uses, ranging from small hardware, small electronic products, small electrical products. Mechanical equipment products as large as automobiles, ships, aircraft, and artillery. In short, Stainless Steel Fasteners are mainly used in electronics, electrical appliances, electrical, electric power, chemical industry, water conservancy, mechanical equipment, furniture and other fields.
Extended Information:
The outer edge of the screw head of the hexagon socket head screw is round, and the middle is a concave hexagon. Hexagon socket screws are often used in machinery, and mainly have the advantages of fastening, easy disassembly, and no slip angle.
Hexagon socket bolts are classified according to thread hardness, tensile strength, yield strength, etc., that is, the grade of hexagon socket bolts. Different Stainless Steel Fasteners materials require different grades of hexagon socket bolts corresponding to them.
Ordinary hexagon socket bolts refer to grade 4.8, and high-strength socket bolts refer to grades 8.8 and above, including grades 10.9 and 12.9. Grade 12.9 socket head bolts generally refer to knurled, naturally oiled black socket head bolts. The bolt performance grade label consists of two parts of numbers, which respectively represent the nominal tensile strength value and yield ratio of the bolt material.