Understanding Different Types of Fasteners for Efficient CNC Machining--cncmass.com(delrin vs nylon Ida)

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CNC (Computer Numerical Control) machining has revolutionized the manufacturing industry, allowing precise and efficient production of various components. One crucial aspect of CNC machining is the use of fasteners that hold different parts together during the machining process. This article aims to provide an in-depth understanding of the types of fasteners used in CNC machining processes.

Types of Fasteners:

1. Bolts:
Bolts are commonly used fasteners in CNC machining due to their strength and reliability. They consist of a threaded cylindrical shaft with a head on one end and a nut on the other. The threading allows for easy installation and removal, making them highly versatile for securing different materials and components.

2. Screws:
Screws are similar to bolts, but they differ in the absence of accompanying nuts. Instead, screws have threads along the entire length, which create their own internal female threads when driven into pre-drilled holes. These self-tapping screws eliminate the need for separate nuts and offer excellent holding power.

3. Nuts:
Nuts are typically used in combination with bolts and screws to secure various parts together. Available in various shapes and sizes, such as hexagonal, square or round, nuts are essential for providing strong and reliable joints in CNC machining applications.

4. Washers:
Washers are flat, disk-shaped fasteners often placed between the head or nut of a bolt, screw, or nut. They serve multiple purposes, including distributing the load over a larger area, preventing damage to the connected material, and reducing friction. Washers also help to improve the overall stability and longevity of fastened connections.

5. Rivets:
Rivets are permanent fasteners widely used in CNC machining when joining two or more pieces of material. They consist of a smooth cylindrical shaft with a head on one end and a tail on the other end. During installation, the tail is deformed or bucked to create a strong and secure joint.

6. Anchors:
Anchors are specialized fasteners used in CNC machining to provide secure attachment into materials like concrete, brick, or stone. They expand within these materials to ensure a reliable grip and prevent dislocation or loosening of fastened components.

7. Pins:
Pins are cylindrical fasteners that enable rotation or sliding motion between two parts. They help align and connect multiple pieces while allowing specific movements as required by the design. Different types of pins, such as dowel pins or spring pins, offer various applications in CNC machining processes.

8. Clips:
Clips, also known as retaining clips or snap rings, are versatile fasteners often used for securing shafts, bearings, or other machine components. These circular metal devices apply inward or outward pressure to maintain the position of their associated parts, ensuring proper alignment during CNC machining operations.


Fasteners play a vital role in CNC machining operations, holding various components together securely throughout the manufacturing process. Understanding the different types of fasteners available, such as bolts, screws, nuts, washers, rivets, anchors, pins, and clips, allows manufacturers to choose the appropriate fasteners for their specific applications. Effective selection and use of fasteners enhance overall assembly strength, efficiency, and durability in CNC machining, ultimately resulting in high-quality and precise products. CNC Milling CNC Machining