Exploring the Various Types of Fasteners in CNC Machining--cncmass.com(brass vs. bronze Lambert)

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In the world of manufacturing, CNC machining has revolutionized the way products are made. From intricate mechanical components to precision tools, it is crucial to understand the importance of fasteners and their various types used in this process. This article aims to explore the different types of fasteners commonly utilized in CNC machining, highlighting their significance and production methods.

Understanding Fasteners in CNC Machining:

Fasteners play a vital role in CNC machining as they help hold different components together securely. These tiny yet essential components ensure structural integrity, preventing any unnecessary movements or loosening of parts during operation. Additionally, fasteners contribute to the overall efficiency and longevity of the final product.

1. Screws:
Screws are one of the most widely used types of fasteners in CNC machining. They come in various forms, including machine screws, self-tapping screws, wood screws, and sheet metal screws. The choice of screw type depends on the specific application and desired function. Machine screws are typically used for assembling heavy-duty components, while wood screws grip firmly into wooden surfaces. Sheet metal screws assist in joining thin metal sheets, whereas self-tapping screws create their own threading when driven into materials like plastic or soft metals.

To produce screws, CNC machining involves turning cylindrical stock into threaded bodies with precisely cut pitches and thread profiles. Thread rolling or cutting processes are employed to maintain accuracy and consistency throughout the production, ensuring proper fitment and functionality.

2. Bolts:
Bolts serve similar functions to screws but differ primarily in their design and usage. Unlike screws, bolts require the presence of nuts to form a secure connection. They are commonly used in applications where disassembly might be necessary or when a higher level of tension is required. Bolts come in various head styles, such as hexagonal, square, or round heads.

CNC machining utilizes various techniques such as threading, milling, or forging to produce bolts with different thread types, lengths, and head shapes. Additionally, heat treatment processes are often applied to enhance the strength and durability of the resulting bolt.

3. Nuts:
Nuts complement bolts by providing a threaded internal hole for secure fastening. They come in different forms, including hexagonal nuts, wing nuts, locknuts, and flange nuts. Hexagonal nuts are the most common type used in CNC machining applications due to their ease of use and high load-bearing capabilities.

CNC machining methods are employed to precisely cut threads into nuts and ensure compatibility with corresponding bolts. The production process involves shaping the raw material into the desired nut shape and then creating internal threads using tapping or milling operations.

4. Rivets:
Rivets are permanent mechanical fasteners that join two or more components together without the need for threading. They consist of a solid cylindrical shaft with a head at one end. Rivets are commonly utilized in aerospace, automotive, and construction sectors where high shear strength is required.

In the manufacturing process of rivets, CNC machining plays a role in cutting the shafts to appropriate lengths, forming heads, and applying compressive force to create a strong connection between the joined parts.


Fasteners play a crucial role in CNC machining, ensuring structural integrity, longevity, and efficient operation of products. Understanding the various types of fasteners allows manufacturers to select the most suitable option based on specific requirements. CNC machining processes enable precise production of screws, bolts, nuts, and rivets, contributing to the overall quality and reliability of the final product. By harnessing the power of these fasteners, manufacturers can deliver superior products that stand the test of time. CNC Milling