Hex nuts are also called hexagon nuts. Generally, there are many types of nuts, including hexagon nuts, round nuts, square nuts and so on. Some standards for nuts are quite clear. Some specifications and size standards, material requirements standards, electroplating standards, etc. are relatively clear. Different types of nuts also have different standards. Let me introduce the specifications and standards of nuts in detail.

Hexagon nuts are used in conjunction with screws, bolts, and screws to connect and tighten parts. Among them, type 1 six-purpose nuts are the most widely used. Grade C nuts are used for machines, equipment or structures with rough surfaces and low precision requirements; Grade A and B nuts are used for smoother surfaces and higher precision requirements. On the machine, equipment or structure. The thickness M of the type 2 hexagon nut is thicker, and it is mostly used in occasions that often require assembly and disassembly. The thickness M of the hexagonal thin nut is relatively thin, and it is mostly used where the surface space of the connected parts is restricted.

As a standard part, it should have its own general specifications. For hexagon nuts, commonly used standards are: GB52, GB6170, GB6172 and DIN934. The main differences between them are: GB6170 is thicker than GB52, GB6172 and Thick from DIN934, commonly known as thick nut. The other is the difference between the opposite sides. In the M8 nut series, the opposite sides of DIN934, GB6170 and GB6172 are 13MM which is 1MM smaller than the 14MM of GB52. For the M10 nut, the opposite side of DIN934 and GB52 is 17MM, The opposite side of GB6170 and GB6172 is 1MM larger. For M12 nuts, the opposite side of DIN934 and GB52 is 19MM than the opposite side of GB6170 and GB6172 18MM is 1MM larger. For M14 nuts, the opposite side of DIN934 and GB52 is 22MM, which is 1MM larger than the opposite side of GB6170 and GB6172, 21MM. The other is the M22 nut. The opposite side of DIN934 and GB52 is 32MM, which is 2MM smaller than the 34MM opposite of GB6170 and GB6172. (GB6170 and GB6172 have the same width on opposite sides except for their different thicknesses.) Other specifications can be used universally regardless of thickness.

There are generally two types, one is iron, that is, carbon steel. One is stainless steel, and of course there are copper and aluminum nuts, but these are less used. Copper is still useful, and aluminum nuts are rarely used.

The stud is a solid piece that bai uses to match the nut. Nuts are parts that connect mechanical equipment tightly. The nut is a part that connects the dao machinery and equipment closely. Through the inner thread, the nuts and bolts of the same specification can be connected together. For example, M4-P0.7 nuts can only be connected with M4-P0.7 series bolts. (In the nut, M4 means that the inner diameter of the nut is about 4mm, and 0.7 means that the distance between the two threads is 0.7mm); the nut is the nut, which is screwed together with the bolt or screw for fastening. All A component that must be used in manufacturing machinery can be divided into carbon steel, stainless steel, and non-ferrous metals (such as copper) according to different materials.