Square tie rods, also known as Scaffolding Tie Rods, are a type of tie rod with a square cross-section. They commonly connect and securely fasten mechanical components by screwing them onto the corresponding square shaft on their surface. Square tie rods typically feature notches or square locking pins on one of their flat surfaces to facilitate rotation and secure fastening.

The primary purposes of square tie rods (Scaffolding Tie Rod) include:

1. Mechanical Connections: Square tie rods connect and firmly secure mechanical components to each other. They help ensure the tightness of the connections and prevent members from loosening on their own.

2. Utilized in Mechanical and Construction Fields: Square tie rods are often employed in the mechanical and construction industries to connect parts, hinges, bolts, and other components.

3. Easy Installation: Square tie rods can be easily installed using hand tools such as wrenches or screwdrivers.

4. Aesthetic Appeal: In some cases, square tie rods may be used for their aesthetic properties or to create focal points in mechanical or construction designs.

5. Industrial and Manufacturing Applications: Square tie rods are commonly used in industrial and manufacturing applications to connect and securely fasten components in production lines or machinery.

In summary, square tie rods are a type of tie rod with a square cross-section used to connect and securely fasten mechanical components in various applications, particularly in mechanical engineering, construction, industry, and manufacturing.