Understanding Different Types of Fasteners for CNC Machining--cncmass.com(brass vs bronze Sandy)

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CNC machining is a revolutionary technology that has transformed various industries, providing precise and efficient manufacturing solutions. In this article, we will explore the world of fasteners in relation to CNC machining. Fasteners are crucial components used to join or secure two or more parts together. Understanding different types of fasteners and their applications can greatly enhance your knowledge of CNC machining processes.

1. Bolts and Screws:

Bolts and screws are perhaps the most commonly recognized type of fasteners. Both have a similar structure, with threads winding around the shaft. Bolts have external threading and require nuts to hold parts together, while screws have internal threading and are self-tapping. These fasteners are essential in CNC machining due to their versatility and ease of use across multiple applications.

2. Nuts:

Nuts are used in conjunction with bolts or threaded rods to create secure joints. They come in various shapes and sizes, such as hexagonal (hex) nuts, square nuts, wing nuts, and more. CNC machines play a vital role in producing these nuts with precision, ensuring accurate thread sizes and pitch.

3. Washers:

Washers are flat discs typically placed between the nut and the surface it comes into contact with. Their primary purpose is to distribute the load evenly, prevent damage to surfaces, and reduce friction. Washers can be produced effectively using CNC machining techniques, ensuring consistent dimensions and thicknesses.

4. Rivets:

Rivets are permanent fasteners often used when welding or screwing is not feasible. They are especially useful in joining lightweight materials like aluminum sheets. CNC machining enables the production of rivet holes with tight tolerances, ensuring a snug fit during installation.

5. Threaded Inserts:

Threaded inserts provide an alternative method for creating sturdy connections. These cylindrical devices are inserted into pre-drilled holes and provide threads for bolts or screws. CNC machining allows for precise insertion and alignment of threaded inserts, improving the overall strength and durability of assemblies.

6. Anchors:

Anchors are specialized fasteners used to provide stability and secure attachments in materials like concrete, drywall, or wood. They expand within cavities to create a firm hold. CNC machines aid in producing accurate anchor holes, allowing for reliable installations.

7. Clips and Clamps:

Clips and clamps simplify assembly processes by holding parts together temporarily until permanent fasteners can be applied. These components often require fine tolerance machining to ensure proper alignment and functionality.

8. Pins and Keys:

Pins and keys are essential fasteners used to prevent relative motion between parts. They come in various designs such as taper pins, dowel pins, and parallel keys. CNC machining guarantees precision manufacturing of these small yet critical components.


Fasteners play an integral role in the CNC machining process, enabling the creation of robust and reliable industrial products. The wide range of fasteners available presents countless possibilities for engineers and manufacturers to explore. By understanding the different types of fasteners and their applications, one gains valuable insights into how these components contribute to the success of CNC machining operations. Harnessing the capabilities of CNC machines ensures accurate production techniques that meet stringent quality standards, resulting in durable and efficient assemblies. CNC Milling