Equal-length Stud

The equal-length stud is a commonly used fastener in mechanical connections. The following is a detailed introduction to the equal-length stud:

Structural Features of the Equal-length Stud

The equal-length stud has threads at both ends, and the lengths of the threads are equal. The middle part is a smooth shank.

It has a variety of length specifications. Commonly, they range from dozens of millimeters to several hundred millimeters to meet the thickness requirements of different connection parts.

The thread profile is usually triangular, and the thread angle is generally 60°. This kind of thread profile has good self-locking performance and transmission efficiency.

Working Principle of the Equal-length Stud

By fitting the threads at both ends with nuts or threaded holes on the connected components respectively, two or more connected components are tightly fastened together.

When the nut is tightened, the stud is subjected to axial tension, which generates pressure between the connected components, thus achieving a tight connection and being able to withstand a certain amount of tensile force and shear force.

Advantages of the Equal-length Stud

It has high connection strength and can withstand large tensile and shear forces, making it suitable for connection parts that need to transmit large loads.

It is convenient to install and disassemble. Just use the corresponding wrench to tighten or loosen the nut, which is convenient for the assembly, maintenance, and replacement of parts of the equipment.

It has good repeatability. After being disassembled and installed multiple times, as long as the threads of the stud and the nut are not damaged, it can still maintain good connection performance.

Application Fields of the Equal-length Stud

Mechanical Manufacturing: It is used for the connection of components of various mechanical equipment, such as the assembly of engine cylinders, the connection of reducer casings, etc.

Construction Engineering: In steel structure buildings, it is used to connect components such as steel beams and steel columns; it can also be used in concrete structures to fix embedded parts or connect formworks, etc.

Pipeline Installation: It connects components such as pipelines and flanges to ensure the sealing and stability of the pipeline system.

Material Selection of the Equal-length Stud

Common Carbon Steel: It has a relatively low cost, a certain strength and toughness, and is suitable for ordinary connections in general working environments.

Stainless Steel: It has good corrosion resistance and oxidation resistance and is often used in corrosive environments such as wet conditions, acids, and alkalis, such as in the fields of chemical equipment and food processing equipment.

Alloy Steel: It has higher strength, hardness, and wear resistance and is suitable for connection parts that bear large loads, impacts, or work in special environments such as high temperatures, such as in the fields of aerospace and mining machinery.

Relevant Standards of the Equal-length Stud

Domestic standards such as GB/T 901 - 1988 "Equal-length Studs, Grade B" specify the dimensions, tolerances, technical requirements, etc. of equal-length studs.

International standards such as ISO 8738 - 1986 "Equal-length Studs, Product Grade B" also specify their relevant parameters to ensure the interchangeability and universality of equal-length studs produced in different countries and regions.