Exploring the Various Types of Fasteners in CNC Machining--cncmass.com(parting line Griselda)

  • Time:
  • Click:6
  • source:MAJA CNC Machining


CNC machining, short for Computer Numerical Control machining, is a manufacturing process that utilizes pre-programmed software controlling various tools and machinery to create custom-designed parts. This advanced technique has revolutionized the production industry by providing precision, accuracy, and efficiency. In CNC machining, one fundamental aspect is using fasteners to secure different components together. This article aims to delve into the wide range of fasteners used in CNC machining, their types, and their significance.

1. Screws:
Screws are one of the most commonly used types of fasteners in CNC machining. They are essential for securing different parts during the fabrication process. A screw consists of a threaded shaft with a slotted or Phillips head on top. The choice of screws depends on factors such as load-bearing capacity, corrosion resistance, head type, and material compatibility. Common examples include machine screws, wood screws, self-tapping screws, and sheet metal screws.

2. Bolts:
Similar to screws, bolts are also vital for joining components in CNC machining. However, bolts typically require nuts for proper fastening. They feature threading along the entire length and come in various shapes and sizes. Hexagonal-head bolts are particularly popular due to their suitability for wrench tightening. Other designs include round, square, and countersunk heads. Different materials like stainless steel, titanium, and brass offer varying strength and resistance properties.

3. Nuts:
Nuts complement bolts in the fastening process and are available in numerous configurations to fulfill specific requirements. Hex nuts, featuring six-sided geometrical shape, are widely used due to ease of gripping and application of torque. Locknuts comprising nylon inserts provide vibration resistance, preventing loosening. Other nut types include wing nuts, cap nuts, t-nuts, and flange nuts. Material choice and dimensions should align with those of the corresponding bolts for a sturdy joint.

4. Washers:
Washers are essential components that distribute the load and prevent damage to fastened surfaces. They act as spacers, reducing friction and increasing stability during tightening. Flat washers, commonly used with screws and bolts, offer a larger contact area. Split washers, also known as spring washers, have a helical shape that prevents loosening caused by vibrations. Additionally, there are specialized washers like lock washers and fender washers based on specific requirements.

5. Rivets:
Rivets serve as permanent fasteners in CNC machining, used when disassembly is not required. These cylindrical pins consist of a head on one end and a flattened tail at the other. A rivet tool compresses the tail into a predrilled hole, creating a secure connection. They find extensive applications in metalworking industries due to their high strength and durability. Common types include solid rivets, blind rivets, tubular rivets, and drive rivets.

6. Anchors:
Anchors play a crucial role in attaching objects to materials where conventional fasteners cannot be used effectively. CNC machining often requires anchoring to concrete, masonry, or walls. There are several anchor types available, such as expansion anchors, wedge anchors, toggle bolts, and screw anchors. They provide efficient gripping mechanisms without damaging the material being secured.


CNC machining heavily relies on various types of fasteners for robust and accurate fabrication processes. The selection of appropriate screws, bolts, nuts, washers, rivets, and anchors depends upon factors like load-bearing capacity, environmental conditions, disassembly requirements, and material compatibility. Understanding these aspects enables manufacturers to produce high-quality and reliable products using CNC machining technology. By incorporating suitable fasteners, strong connections can be achieved, ensuring the seamless functioning and longevity of manufactured components. CNC Milling CNC Machining