All You Need to Know About Different Types of Fasteners for CNC is non ferrous metal Channing)

  • Time:
  • Click:6


CNC machining is a versatile manufacturing technology that involves the use of computerized numerical control systems to produce high-precision components. One crucial aspect of this process is fastening, which helps secure various parts during production. In this article, we will explore the different types of fasteners commonly used in CNC machining and their importance in the manufacturing industry.

Types of Fasteners:

1. Bolts:
Bolts are threaded fasteners designed to provide strong and reliable joints. They consist of a cylindrical shaft with external threads, known as the shank, and a head at one end. Bolts can be categorized based on their head shape (hexagonal, square, etc.) or the type of thread they have (standard or fine). During CNC machining, bolts play a vital role in keeping different components in place, ensuring precision throughout the entire process.

2. Nuts:
Nuts complement bolts by providing a mating thread system. These internally threaded fasteners are easy to install and remove, making them highly popular in CNC machining applications. Typically hexagonal in shape, nuts come in various materials such as steel, brass, aluminum, or nylon. Their primary purpose is to create mechanically secured connections, preventing loosening or dislodgement during machine operations.

3. Screws:
Screws are similar to bolts; however, they differ in terms of their intended use. While bolts are primarily used in unison with nuts, screws don't require any additional hardware for fastening. They feature an externally threaded shaft with a spiral groove running along its length, known as the thread. With different screw heads available (flat, pan, round, etc.), CNC machines utilize screws to hold together parts that do not require frequent disassembly.

4. Rivets:
Rivets are permanent mechanical fasteners widely used in CNC machining. These consist of a cylindrical shaft with a head on one end and a tail on the other. Rivets are installed by deforming the tail, creating a wide-flanged joint that holds parts securely together. Unlike bolts or screws, rivets cannot be easily disassembled once they have been installed, making them suitable for applications where permanent connections are needed.

5. Washers:
Although washers may seem simple compared to other fasteners, their role is equally crucial in CNC machining. Washers are thin disks with a hole in the center, designed to distribute the load exerted by a bolt or screw onto the surface it contacts. They act as protective elements, preventing damage to the material being fastened and reducing the risk of loosening over time. Various types of washers exist, including flat washers, lock washers, and spring washers, each serving specific purposes.

Importance of Fasteners in CNC Machining:

Fasteners play a vital role in ensuring precision, stability, and efficiency throughout CNC machining processes. By securely holding components, they prevent misalignment, shifting, or movement during operations, thereby safeguarding accuracy and avoiding costly errors. Fasteners also facilitate easy assembly and disassembly, enabling quick adjustments or part replacements whenever necessary.

Moreover, choosing the right type of fastener is important to ensure compatibility with different materials and environmental conditions. Factors such as strength, corrosion resistance, temperature tolerance, and vibration resistance should be carefully considered when selecting fasteners for CNC machining applications.


In conclusion, fasteners are essential components in CNC machining, providing secure connections between various parts. Bolts, nuts, screws, rivets, and washers all contribute significantly to maintaining precision, accuracy, and stability during manufacturing processes. It is crucial to understand the characteristics of these fasteners and their appropriate use to achieve optimum results. To ensure successful CNC machining projects, consult with experts who can guide you in selecting the most suitable fasteners for your specific application needs. CNC Milling