Orange Bolt M8 Anti-corrosion

A flange bolt is a fastener composed of a hexagonal head, a flange plate, and a screw, mainly used to connect and tighten two parts with through holes. Its structure includes a cylindrical screw with external threads, a hexagonal head fixed to the screw, and a gasket or flange located below and integrated with the hexagonal head.

The characteristic of flange bolts is that they have a larger ratio of support area to stress area, which allows them to withstand higher preloading forces and have better anti loosening performance. This type of bolt is widely used in fields such as automotive engines and heavy machinery.

The specification parameters of flange bolts usually include bolt length, pitch, strength grade, etc. For example, the length of a bolt refers to the length of the threaded part, usually marked in millimeters, such as 20mm, 25mm, etc; The pitch of bolts refers to the spacing between threads, usually marked in millimeters, such as 1.5mm, 2.0mm, etc; The strength grade of the bolt represents the maximum tensile force that the bolt can withstand.

In addition, flange bolts are divided into different standards and specifications, such as GB5787, GB5789, and DIN6921. These standards provide detailed specification and size tables for users to choose and use.

In summary, flange bolts are an important fastener with good anti loosening performance and high load-bearing capacity, suitable for various industrial and mechanical fields.