Hexagonal Hollow Fine Thread Screw

Product introduction

Hexagonal hollow fine-thread screws are a unique fastener with a hexagonal flange-shaped head, fine threads on the stem, and a hollow interior. It cleverly blends high-strength connections with lightweight and versatility, making it an engineered solution to specific design needs.

 

Its core design lies in the hollow structure, which can significantly reduce the weight of the components and allow cables, conduits or fluids to pass directly through the inside of the screws, providing great convenience for wiring and management in compact spaces. With the fine thread design, a more precise pitch is achieved, which enables stronger meshing force and anti-loosening performance on thin-walled parts or materials with higher hardness, making the connection more reliable. The hexagonal flange design of the head provides a larger pressure-bearing surface, which can effectively distribute the load without additional gaskets and facilitate the tool to quickly tighten from all angles. This product is widely used in areas that are weight-sensitive and require built-in wiring or media circulation, such as aerospace, high-end bicycles (such as brake and transmission cable routing), precision instruments, hydraulic systems, and robots. It is an ideal choice to achieve lightweight and integrated design while ensuring structural strength.

 

Product features

1. Significant lightweight and material saving

Its hollow structure can significantly reduce the weight of the screw itself, which is crucial for weight-sensitive cutting-edge applications (such as aerospace, high-end sports equipment), while saving material costs.

 

2. Multifunctional integrated channel

The hollow design makes the interior a natural channel, allowing cables, conduits, coolants or gases to pass directly through it, realizing multiple functions such as wiring, diversion, and heat dissipation, greatly simplifying system design in compact spaces.

 

3. Precision locking of fine threads

Fine threads have a smaller pitch and deeper engagement depth. This enables it to achieve a stronger grip (gripping force) and higher anti-loosening and shock-resistant capabilities in thin-walled parts, high-hardness materials, or scenes that require fine-tuning, making the connection more precise and reliable.

 

4. Excellent head design

The head usually adopts a hexagonal flange surface design, which takes into account the traditional wrench tightening method. At the same time, the flange surface provides a larger pressure-bearing area, which can effectively distribute the load and prevent indentation on the connection surface, without the need for additional gaskets.

 

Product application

1. Aerospace and UAVs

These areas are extremely weight sensitive. This screw can significantly reduce the weight of the overall structure. At the same time, its hollow channel can be used to thread sensor lines, optical fibers, or as a guide tube for light gases, achieving both functional integration and weight reduction.

 

2. High-end bicycles and sports equipment

Widely used in the installation of brake systems and transmission cables of road bicycles and mountain bikes. The wire conduit can pass directly through the center of the screw to achieve a simple and smooth internal wiring design, which not only looks beautiful, but also reduces wind resistance and protects the wire conduit.

 

3. Robots and precision instruments

In compact industrial robots, medical equipment and precision instruments, the hollow part provides an ideal passage for wire harnesses and capillary tubes (such as for cooling or sensing), helping to keep the inside of the equipment tidy, avoiding cable entanglement, and facilitating maintenance.

 

4. Hydraulic and pneumatic systems

It can be used as a connecting joint, allowing the oil pipe or air pipe to pass directly through and connect to the actuator, simplifying the complex pipeline layout, especially in space-limited valve blocks and modular designs. The advantages are obvious.

 

5. Semiconductor and electronic manufacturing equipment

The fine thread provides precise adjustment and reliable locking capabilities on high-hardness materials (such as aluminum alloy, quenched steel), while its hollow structure can be used for through-holes or coolant guidance in vacuum environments.

 

FAQ

Q: What is the core value of this screw?

A: Its core value lies in functional integration. It is not just a fastener, but a multifunctional platform that simultaneously achieves the three functions of lightweighting, providing threading/fluid channels, and precision locking on thin-walled or hard materials.

 

Q: Will the hollow structure significantly reduce the strength of the screws?

A: Yes, this is a necessary compromise for functionality. Compared with solid screws of the same outer diameter, its tensile strength and shear strength are reduced. Therefore, strict force calculation must be carried out when selecting the type to ensure that its mechanical properties meet the application requirements, and solid screws of the same specification must not be directly replaced.

 

Q: How to choose between fine thread and coarse thread?

A: The main selection basis is the material and adjustment requirements of the connector:

Use fine teeth: Suitable for thin-walled parts, high-hardness materials, or situations that require fine-tuning and higher anti-loosening performance. The fine thread has more engagement turns and the connection is tighter and more reliable. Use coarse teeth: Suitable for thick walls, soft materials (such as cast iron, ordinary steel) and general scenarios that require rapid assembly.

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