Exploring the Diversity of Fasteners Used in CNC Machining--cncmass.com(annular snap fit Broderick)

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CNC machining has revolutionized the manufacturing industry with its precise and efficient capabilities. This computer-controlled process enables the production of intricate parts and components used in various industries. One crucial aspect of CNC machining is fasteners, which play a vital role in joining two or more materials together. In this article, we will delve into different types of fasteners commonly used in CNC machining.

1. Bolts and Screws:
Bolts and screws are versatile fasteners extensively utilized in CNC machining processes. These threaded fasteners possess distinct characteristics that make them suitable for specific applications. Bolts are typically larger and have external threading, while screws are usually smaller with internal threads. Both bolts and screws can be made from steel, stainless steel, brass, or aluminum. The choice of material depends on factors such as strength, resistance to corrosion, and weight requirements.

2. Nuts:
Nuts are essential counterparts to bolts and screws. They are typically hexagonal or square-shaped, allowing for easy tightening using tools like wrenches. Similar to fasteners, nuts can also be made from a variety of materials, depending on their intended application. When selecting nuts, compatibility with the corresponding bolt or screw must be considered to ensure proper functionality and load-bearing capacity in CNC machined products.

3. Washers:
Washers are thin, flat discs that serve as protective elements between the fastener and the surface it contacts. Their primary role is to distribute loads evenly, prevent deformation, and reduce friction. There are several types of washers available, including plain washers (flat), spring washers (to maintain tension), and lock washers (to resist loosening due to vibrations). Choosing the appropriate washer ensures improved performance and longevity of CNC machined assemblies.

4. Rivets:
Rivets offer an alternative method of joining components when welding or using fasteners is not feasible. They consist of a cylindrical shaft with a head on one end and a tail that deforms upon installation, creating a secure connection. CNC machining can produce rivet holes accurately to ensure proper alignment during assembly. Different types of rivets, such as solid, blind, tubular, and split, cater to specific design requirements in various industries.

5. Inserts:
Inserts are threaded metal components utilized to strengthen or repair holes in materials that may be prone to wear or damage. These inserts allow for repeated screwing and unscrewing without wearing out the original material. Commonly used in plastics and composites, CNC machining enables precise insertion of these components by producing accurate threads within drilled or molded holes.

6. Anchors:
In applications where fastening into concrete, brick, or masonry is required, anchors offer a reliable solution. CNC machining ensures accurate drilling of holes necessary for anchor placement. Popular varieties include wedge anchors, sleeve anchors, and drop-in anchors, each suitable for different load-bearing capacities and base materials.


Fasteners play a pivotal role in CNC machining, offering robust connections between parts and ensuring overall structural integrity. Understanding the diverse range of fastener options available allows manufacturers to select the most appropriate type based on factors like load-bearing capacity, aesthetic appeal, corrosion resistance, and ease of installation. By harnessing the benefits of CNC machining, coupled with the wide variety of fasteners at their disposal, manufacturers can produce high-quality products across numerous industries efficiently and reliably. CNC Milling CNC Machining