Exploring the Various Types of Fasteners Used in CNC Machining--cncmass.com(delrin vs hdpe Broderick)

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CNC machining has revolutionized various industries by providing accurate and efficient manufacturing processes. This advanced technology relies on a range of components, including fasteners, to ensure precise and secure assembly. In this article, we will delve into the world of CNC machining and discuss different types of fasteners used within this realm.

1. Bolts and Screws:
Bolts and screws are essential fasteners that play a key role in CNC machining. These threaded cylindrical devices join two or more parts together by applying torque through their mating counterparts (nuts). Bolts and screws come in various sizes, lengths, and thread patterns to accommodate specific applications. They are typically made from stainless steel or alloy steel for enhanced strength and durability.

2. Nuts:
Nuts are complementary fasteners essential for securing bolts and screws in place. Commonly hexagonal or square-shaped, nuts have internal threads that mate with the external threads of bolts and screws. Just like fasteners, nuts vary in size and materials to cater to specific applications' requirements. The most commonly used nuts in CNC machining include hex nuts, lock nuts, coupling nuts, and wing nuts.

3. Rivets:
Rivets are permanent fasteners widely utilized in CNC machining for joining metal sheets or plates. Designed to be inserted through aligned holes, rivets undergo a process called "riveting," where their shank is deformed using specialized tools, creating a second head at the opposite end. This deformation forms a tight connection, ensuring structural integrity. Aluminum, steel, and copper are common materials used for rivets.

4. Washers:
Washers are flat, disk-like fasteners placed between joints to distribute the load evenly, preventing damage or distortion. They provide additional support, reduce friction, and act as a spacer to compensate for imperfections in surfaces. Flat washers, spring washers, and lock washers are commonly used in CNC machining. While they predominantly come in metal materials such as steel or stainless steel, plastic washers are also utilized for specific applications.

5. Clips:
Clips, also known as retaining clips or retaining rings, offer a convenient way to secure fasteners within assemblies. These round-shaped metal rings fit into specially designed grooves on the shafts of components, ensuring they remain in place during operation. E-clips, C-clips, and internal/external circlips are common examples of clips used in CNC machining processes. They provide an efficient solution where traditional mounting methods may not be feasible.

6. Anchors:
Anchors find their purpose in CNC machining when attaching objects to walls, floors, or ceilings. These fasteners create stable connections by expanding or wedging themselves against the surrounding material when inserted into pre-drilled holes. Common types of anchors include wall plugs, expansion anchors, toggle bolts, and concrete screws. Material selection depends on factors such as load capacity, substrate type, and environmental conditions.


In CNC machining, the choice of fasteners is critical to ensure precision, stability, and efficiency throughout the manufacturing process. Bolts, screws, nuts, rivets, washers, clips, and anchors all contribute to seamless assembly and secure fabrication. Understanding the different fastener options available allows designers and engineers to select the most suitable components based on their specific application requirements. By incorporating reliable and high-quality fasteners, CNC machined products gain structural integrity, prolonged lifespan, and enhanced performance in diverse industries. CNC Milling