Exploring the Different Types of Fasteners Used in CNC Machining--cncmass.com(齿轮 Victoria)

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CNC machining plays a vital role in the manufacturing industry, allowing for precise and efficient production of various components and products. One essential aspect of this process is the use of fasteners, which ensure parts are securely joined together. In this article, we will delve into the different types of fasteners utilized in CNC machining, their applications, and how they contribute to the overall efficiency of the process.

1. Screws and Bolts:
Screws and bolts are one of the most commonly used fasteners in CNC machining. They consist of a shaft with helical threads that fit into corresponding holes or nuts to join two or more components together tightly. Various screw and bolt types – such as machine screws, cap screws, and shoulder bolts – offer different characteristics like mechanical strength, corrosion resistance, and thread locking capabilities.

2. Nuts:
Nuts are paired with screws and bolts to create a robust connection. They have internal threading that matches the external threading on screws and bolts. These threaded components encompass various nut types including hex nuts, wing nuts, and flange nuts. Each type serves specific functions based on factors such as load capacity, vibration resistance, and ease of installation and removal.

3. Washers:
Washers are thin, flat discs with a central hole that sits between fasteners and surfaces being joined. Their primary purpose is to evenly distribute the pressure exerted by screws or bolts, protecting the materials from damage and ensuring a stable connection. Common washer types include plain washers, spring washers, and lock washers, each designed to serve unique requirements related to friction, electrical conduction, and anti-rotation.

4. Rivets:
Rivets provide permanent fastening solutions in CNC machining by joining materials through a cold-forming process. Utilizing rivet guns or presses, deformable rivets are inserted into pre-drilled holes and then expanded to create a secure connection. Rivets offer exceptional strength in shear, vibration resistance, and resistance to loosening under load.

5. Inserts:
Also referred to as threaded inserts or helicoil inserts, these components enhance the integrity of threads in CNC-machined parts. They are commonly used in materials with low thread-holding capabilities or for repair purposes, ensuring durability and improved fastening performance. With their spiral design, inserts form tight connections that withstand high stress and torque.

6. Clips and Clamps:
Clips and clamps efficiently hold multiple components together without requiring traditional fasteners. These removable devices apply consistent pressure or tension on surfaces, joining them securely while allowing for easy disassembly and reassembly. Clips can be found in automotive assembly, electronics manufacturing, and other industries where rapid installation and maintenance are essential.


Fasteners play an integral role in CNC machining by ensuring precision and reliability in joining various components and products. Understanding the different types of fasteners – such as screws, nuts, washers, rivets, inserts, clips, and clamps – allows manufacturers to choose suitable options based on specific project requirements. The proper selection and utilization of fasteners contribute significantly to optimizing assembly processes, enhancing product quality, and minimizing maintenance efforts. By exploring and selecting the ideal fastening solutions for CNC machining operations, manufacturers can maintain efficiency and produce superior end-products. CNC Milling CNC Machining