What are the standards for copper nut posts, and what are the standards for copper nuts?

If the hole in the middle is a threaded hole, it can generally be called a nut post. The threaded hole should be standard, and the shape should be determined according to the requirements of use (this can also be considered non-standard). However, if there is no requirement for the shape, it is recommended to use hexagonal copper rod to reduce the processing cost (the shape does not need to be processed, it is hexagonal).

In addition, if the copper pillar is long (about 2 times longer than the nominal diameter of the thread), the ribbed hole in the center does not need to be made full length, drill a through hole (or impassable) with the bottom diameter of the thread, and tap a section of thread. Lessons learned from experience are for reference.

1. The nut is the nut, which is screwed together with the bolt or screw to play a fastening role, and is an original that must be used in all manufacturing machinery. There are many kinds of nuts, and our common ones are national standard, British standard, American standard, and Japanese standard nuts. According to the different materials, nuts are divided into several types such as carbon steel, high strength, stainless steel, and plastic steel.

According to the product attributes, the corresponding national standard numbers are divided into ordinary, non-standard, (old) national standard, new national standard, American system, British system, and German standard. Depending on the size, the threads are unequal and divided into different specifications. Generally, the national standard and German standard are represented by M (such as M8, M16), and the American and British systems are represented by fractions or specifications (such as 8

2. The nut is a part that closely connects the mechanical equipment, through the inner thread, the nut and the screw of the same specification can be connected together, for example, the nut can only be matched with the screw (in the nut, M4 refers to the inner diameter of the nut is about 4mm, which refers to the distance between the two thread teeth; The same is true for U.S. products, e.g. a 1 4-20 nut can only be paired with a 1 4-20 screw (1 4 finger nut has an inner diameter of about inches, and 20 means that there are 20 teeth in each inch).

Common national standards for nuts:

Type GB41 Hex Nut – Grade C.

GB6170 Hex Nut - Grade A, B.

GB6171 Hexagon Nut - Fine Pitch - Class A and B.

GB6172 Hexagon Thin Nut - Class A and B - Chamfering.

GB6173 Hexagonal Thin Nut - Fine Tooth - Class A and B.

GB6174 Hexagon Thin Nut - Grade B - No Chamfer.

GB6175 Hex Nut - Grade A, B.

GB6176 Hexagon Nut - Fine Pitch - Class A and B.

GB6177 Hexagon Flange Face Nut - Grade A.

GB56 hexagonal thick nut.

GB1229 large hexagon nut (high strength for steel structure).

Common national standards for copper nuts: GB41 hexagonal copper nuts - Grade C; GB6170 Hexagon Copper Nut - Grade A and B; GB6171 Hexagon Copper Nut - Fine Pitch - Grade A and B; GB6172 Hexagon Thin Copper Nut - Grade A and B - Chamfering; GB6173 Hexagonal Thin Copper Nut - Fine Tooth - Grade A and B; GB6174 Hexagon Thin Copper Nut - Grade B - No Chamfer; GB6175 Hexagon Copper Nut - Grade A and B; GB6176 Hexagonal Copper Nut - Fine Tooth - Grade A and B GB6177 Hexagon Flange Face Copper Nut - Grade A; GB56 hexagonal thick copper nut; GB1229 large hexagonal copper nut (high strength for steel structure).

The standards for copper nuts are mainly divided into GB 41I hexagon nuts, GB 6170I hexagon nuts, JB 6171I hexagon nuts, and the remaining nine standards.