Exploring the Various Types of Fasteners Used in CNC Machining--cncmass.com(is aluminum lighter than titanium Ralap)

  • Time:
  • Click:9
  • source:FANYA CNC Machining


In the field of CNC machining, fasteners play a crucial role in ensuring the structural integrity and functionality of assemblies. These essential components are utilized to securely join different parts together, withstand vibrations, and distribute loads effectively. In this article, we will explore the diverse types of fasteners commonly used in CNC machining processes.

1. Screws:

Screws are one of the most widely recognized and extensively used fasteners in CNC machining. They consist of a threaded shaft with either a slotted or Phillips head, allowing for easy tightening and loosening using corresponding screwdrivers. Different types of screws include machine screws, wood screws, self-tapping screws, and sheet metal screws. The choice of screw depends on the material being joined and the specific requirements of the project.

2. Bolts:

Bolts, like screws, feature a threaded shaft but typically have a larger and more robust design. They require nuts to secure them tightly in place. Bolts come in various types such as carriage bolts, hex bolts, eye bolts, U-bolts, and anchor bolts. These versatile fasteners demonstrate excellent strength and durability, making them ideal for applications where heavy loads need to be supported.

3. Nuts:

Nuts are complementary fasteners to bolts and often work together to create a strong and reliable connection. They come in many variations including hex nuts, wing nuts, lock nuts, coupling nuts, and acorn nuts. Hex nuts are the most common type and are compatible with standard wrenches, offering ease of use during assembly and disassembly. Nuts play an integral role in holding adjacent objects snugly in place and preventing unintended movement or rotation.

4. Washers:

Washers are thin, flat discs that provide additional support and prevent damage when fastening materials together. They act as spacers between the fastener and the surface, distributing the load evenly. Common types of washers include flat washers, split washers, fender washers, and lock washers. Lock washers are specially designed to prevent nuts and bolts from loosening due to vibrations or rotational forces, ensuring a secure connection.

5. Rivets:

Rivets are permanent fasteners that are commonly used in CNC machining where welding is not feasible or desired. These cylindrical metal pins with heads on one end are inserted through aligned holes and secured by being deformed at the opposite end using pressure or heat. This creates a tight joint between two materials, such as metal sheets or plates, without requiring access from both sides. Rivets find extensive applications in industries such as aerospace, automotive, and construction.

6. Anchors:

Anchors are specialized fasteners used when attaching objects to surfaces like concrete, brick, or drywall. They provide stability and support in applications where traditional screws and bolts would not suffice. There are various types of anchors available, including wall anchors, wedge anchors, sleeve anchors, and toggle bolts. Each type offers unique advantages for specific installation requirements, enhancing safety and efficiency.


Fasteners are an indispensable aspect of CNC machining processes, enabling the creation of sturdy assemblies with exceptional strength and reliability. Understanding the different types of fasteners, including screws, bolts, nuts, washers, rivets, and anchors, allows manufacturers and engineers to select the most suitable options for their projects. By considering factors such as material compatibility, load capacity, and environmental conditions, the right choice of fastener contributes significantly to the success and longevity of CNC machined components and structures. CNC Milling CNC Machining