Exploring Various Types of Fasteners in CNC Machining--cncmass.com(metal surface finish Olga)

  • Time:
  • Click:11
  • source:FANYA CNC Machining


In the realm of CNC machining, fasteners are essential components that play a crucial role in holding different parts together securely. These small yet mighty devices come in various types and serve diverse purposes to ensure structural integrity and stability. This article aims to shed light on the different categories of fasteners commonly used in CNC machining processes.

1. Bolts and Screws:
Bolts and screws are widely utilized fasteners in CNC machining due to their versatility. They consist of threaded rods with either a hexagonal or cylindrical head. Bolts have an external thread pattern and require nuts for secure fixation, while screws possess internal threads within their shafts, thereby serving multiple functions simultaneously. These fasteners find applications in building frames, machinery assemblies, and automotive industries, among others.

2. Nuts:
Nuts complement bolts by providing added support and securing them firmly into place. They usually feature a hollow cylinder shape with internal threading compatible with the respective bolts' size and pitch. The variety of nut designs ensures suitability for specific applications, such as square nuts for wooden structures or wing nuts for quick assembly/disassembly requirements.

3. Washers:
Washers act as protective shields between the fastener and its bearing surface (usually a material like wood or metal). They evenly distribute the load applied during tightening, enhancing stability and preventing damage. Flat washers, split washers, and lock washers are some common types chosen based on specific needs like vibration resistance or self-locking capabilities.

4. Rivets:
Rivets are permanent fasteners extensively used in CNC machining processes where welded joints may not be feasible. They consist of a cylindrical stem called the shank, with one end expanded to create a secure connection. Solid rivets offer exceptional strength and reliability, making them suitable for aerospace applications, structural steelwork, or heavy-duty machinery installations.

5. Clips and Clamps:
Clips and clamps are temporary fasteners used for holding objects together during CNC machining operations. Their adjustable nature allows easy installation and removal, making them ideal for tasks like securing workpieces onto milling machines or supporting delicate components throughout the manufacturing process.

6. Anchors:
Anchors serve as fasteners specifically designed to provide stability in materials that lack inherent strength, such as drywall or concrete. They come in various forms, including sleeve anchors, wedge anchors, and toggle bolts. Anchors expand within the material upon insertion, creating a robust connection point for attaching other components or fixtures securely.

7. Studs:
Studs function similarly to bolts but don't possess a head. Instead, they have threads on both ends or one end, with the other end allowing attachment by welding or threading into a tapped hole. Studs are often used when a threaded connection is required on only one side, enabling easier assembly and disassembly of parts.

8. Threaded Inserts:
Threaded inserts act as reinforcements for weak or brittle materials, providing durable threads without damaging the surrounding area. These inserts are embedded using specialized tools like heat or ultrasonic equipment, resulting in increased load-bearing capacity in applications involving wood, plastic, or composite materials.


The world of CNC machining relies heavily on different types of fasteners to ensure precision, structural integrity, and efficient assembly. From bolts and screws to rivets, clips, and anchors, each type serves a distinct purpose in securely joining components together. By understanding these diverse fastener options, manufacturers can optimize their CNC machining processes, ultimately delivering high-quality products across industries. CNC Milling CNC Machining