Exploring the Different Types of Fasteners in CNC Machining--cncmass.com(abs plastic injection molding York)

  • Time:
  • Click:1
  • source:EAGLEBURGER CNC Machining


In the realm of CNC (Computer Numerical Control) machining, fasteners play an essential role in joining different components together. These mechanical devices are crucial for ensuring structural integrity and stability in a wide range of industries. In this article, we will delve into the various types of fasteners used in CNC machining, shedding light on their importance and applications.

Type 1: Screws

Screws are among the most common and versatile types of fasteners used in CNC machining. They feature a threaded cylindrical shaft with a distinct head to allow easy installation using tools like screwdrivers or wrenches. Screws come in numerous variations, such as machine screws, self-drilling screws, sheet metal screws, and wood screws. Each variant is designed for specific purposes and materials.

For instance, machine screws are commonly used to hold metal parts together, whereas self-drilling screws eliminate the need for pre-drilled holes when fastening metal sheets. Sheet metal screws, on the other hand, have sharp tips ideal for securing metal onto metal surfaces. Wood screws, as the name suggests, are specifically designed for woodworking projects due to their coarse threads for effective grip in wooden materials.

Type 2: Bolts

Bolts are similar to screws, but they typically require nuts for fastening. They have unified threads along the entire length of the shaft, which provides stronger connections compared to screws. Like screws, bolts also come in various forms, including hexagon bolts, carriage bolts, flange bolts, and eye bolts.

Hexagon bolts are widely utilized due to their simplicity and effectiveness in resisting rotation. Carriage bolts, characterized by their rounded heads, are commonly used in applications where aesthetics are important, such as furniture assembly. Flange bolts incorporate flanged heads that distribute clamping force over a larger area, offering enhanced stability while preventing damage to the connected surfaces. Eye bolts, on the other hand, feature a looped head for attaching cables or hooks.

Type 3: Nuts

Nuts are threaded fasteners used in combination with bolts to secure various components together. They are typically hexagonal in shape and come in different sizes and materials. The most commonly used nut types include regular hex nuts, acorn nuts, lock nuts, wing nuts, and T-nuts.

Regular hex nuts are standard nuts suitable for general-purpose applications. Acorn nuts, also known as cap nuts, have a domed top, enhancing aesthetics while providing some protection against external elements. Lock nuts incorporate a locking mechanism to prevent loosening due to vibrations, making them ideal for critical installations. Wing nuts feature two wings on their sides for easy hand tightening, often found in furniture assembly. Lastly, T-nuts have a unique "T"-shaped design that allows them to be inserted into slots or channels within a material, facilitating secure attachment.


In CNC machining, fasteners serve as crucial building blocks for creating functional and durable products. Understanding the different types of fasteners, including screws, bolts, and nuts, is essential for ensuring effective connections in various industries like automotive, aerospace, construction, and furniture manufacturing, among others. By selecting the appropriate fasteners and using them correctly, engineers and designers can achieve robust assemblies, ensuring reliability and safety in their creations. CNC Milling CNC Machining