A Comprehensive Guide to Types of Fasteners in CNC Machining--cncmass.com(bending stainless steel tubing William)

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CNC machining is a revolutionary technology that has transformed various industries by enhancing precision, efficiency, and flexibility in manufacturing processes. One crucial aspect of CNC machining is the use of fasteners. These essential components play a pivotal role in securing different parts together, ensuring structural integrity, and facilitating ease of assembly and disassembly. In this article, we will explore the types of fasteners commonly used in CNC machining processes and delve into their production methods.

1. Screws:
Screws are perhaps the most easily recognizable type of fastener. They consist of a threaded shaft with either a flat or rounded head. The threads allow screws to be firmly inserted and secured in pre-drilled holes. Threads can vary depending on their pitch and direction, which determines how they lock into the mating surface. Common screw varieties include wood screws, machine screws, sheet metal screws, and self-tapping screws. Production involves cold forging, machining, and heat treatment processes tailored to specific material requirements.

2. Bolts:
Similar to screws, bolts have external threading but do not possess mating threads within the assembled parts. Bolts typically require the presence of nuts or other threaded mating components for complete attachment. Bolt heads come in numerous shapes, such as hexagonal, square, and round, offering different benefits based on application needs. The production process includes shaping raw materials through hot forging, drilling for shank creation, and thread rolling or cutting.

3. Nuts:
Nuts accompany bolts in CNC machining applications and act as fastening elements. Their internal threading enables them to mate seamlessly with bolts, forming a secure joint when tightened. Hex nuts, wing nuts, and square nuts are among the common nut variations available. Manufacturing involves wire drawing, blanking, and threading operations to produce high-quality nuts suitable for specific load-bearing capacities.

4. Rivets:
Rivets are used when joining or fastening soft materials, such as fabric, leather, plastics, or even metals. They consist of a pin-like component with an integral head on one end and require a specialized tool to install them securely. During installation, the tail end of the rivet is deformed, creating a clamping effect between the connected parts. The production process includes cutting metal rods into desired lengths, drilling holes in mating components, inserting the rivets, and then using specific tools to deform the rivet's tail.

5. Clips:
Clips are versatile fasteners widely utilized in CNC machining applications for their ease of use and reusability. These devices securely hold sheets, panels, wires, cables, and other lightweight components together without requiring any additional threading. Common types of clips include spring clips, push-in clips, and snap-on clips. The manufacturing process involves stamping, bending, and heat treatment operations to achieve optimal strength and flexibility.


The world of CNC machining heavily relies on various types of fasteners to ensure precise assembly, structural integrity, and efficient functioning of manufactured products. From screws and bolts to nuts, rivets, and clips, each type of fastener offers unique benefits suited for specific applications. Understanding the different types of fasteners and their respective production methods enables manufacturers to make informed choices during the CNC machining process, ultimately leading to superior quality end products. CNC Milling CNC Machining