There are many kinds of
hex nuts, hexagonal nuts, round nuts, square nuts and so on. Some specifications and size standards, material requirements, electroplating standards are more clear. And different kinds of nuts also have different standards, detailed introduction of nut specifications and standards.
1, ordinary
hex nuts widely used, is characterized by large fastening force. The disadvantage is that there should be enough room for operation during installation. Adjustable wrench, open wrench or glasses wrench can be used during installation.
2, cylindrical head hex nuts is the most widely used in all screws, because it is relatively large fastening force, the use of hexagon wrench can be operated, installation is very convenient, almost used in a variety of structures, the appearance is more beautiful and tidy. The disadvantage is that the fastening force is slightly lower than the outer hexagonal, in addition, repeated use is easy to damage the inner hexagonal can not be removed.
3, pan head hexagon machine is rarely used, mostly used in furniture. The main function is to increase the contact surface with wooden materials and increase the appearance of the ornamental.
4, headless inner hexagon must be used in some structures, such as the top wire structure that requires a lot of tension, or the place where the cylindrical head needs to be hidden.
5, countersunk head hexagon is mostly used in power machinery, the main role is the same as the hexagon.
6, nylon lock nut in the hexagonal inlaid nylon apron, prevent thread loose structure, strong power machinery used.
7, flange nuts mainly play a role of increasing the contact surface with the workpiece. Mostly used in pipes, fasteners and some stamping and casting parts.
8, ordinary
hex nuts are the most widely used, but also one of the most common fasteners.
