Understanding Different Types of Fasteners in CNC Machining--cncmass.com(bronze tensile strength Egbert)

  • Time:
  • Click:5
  • source:NODIE CNC Machining


CNC machining plays a pivotal role in manufacturing various components and products across different industries. From automotive parts to aerospace components, the ability to produce complex shapes and designs accurately is what makes CNC machining highly sought after. In this article, we will explore the world of fasteners and their importance in CNC machining processes.

Understanding Fasteners:

Fasteners are hardware devices used to join or secure two or more objects together. They play a critical role in ensuring structural integrity and facilitating easy assembly and disassembly processes. Various types of fasteners are employed in different applications based on factors like load-bearing capacity, material compatibility, ease of installation, aesthetics, and environmental considerations.

Common Types of Fasteners:

1. Bolts:
Bolts consist of a threaded cylindrical shaft with a head at one end. The threading provides the required grip when secured into a matching nut. Bolts are essential for holding multiple components together, such as machinery parts or structural elements. They come in different materials, strengths, and sizes depending on the specific application requirements.

2. Screws:
Screws differ from bolts in that they typically do not require a separate nut for installation. They have internal threading and can be inserted directly into pre-drilled or tapped holes. Screws offer excellent holding power and are commonly used in woodwork, electronics, and assembling machinery parts.

3. Nuts:
Nuts are counterpart fasteners to bolts. These hexagonal or square-shaped metal pieces comprise internal threading to match the diameter and thread pitch of the bolt being used. When tightened against the bolt, nuts help maintain a secure joint. Choosing the right type of nut is crucial, considering factors such as thread engagement length, strength, torque capabilities, and corrosion resistance.

4. Washers:
Washers act as spacers between fasteners (bolts/screws) and the surfaces they secure. They distribute the load evenly, prevent damage to the material being fastened, and help increase stability. Common types of washers include flat washers that provide a larger bearing surface, lock washers that prevent loosening due to vibrations or torque, and spring washers that compensate for joint movement.

5. Rivets:
Rivets are cylindrical fasteners designed for permanent joining. They consist of a smooth body with a head on one end and a tail on the other. During installation, the rivet is inserted into pre-drilled holes and then deformed using specialized tools, forming an enlarged "shop" at the tail. This deformation ensures a tight and reliable connection between materials such as metal sheets or composite structures.

6. Clips and Clamps:
Clips and clamps are temporary fasteners used in applications where frequent dismantling is required. These devices can be easily attached or detached without damaging the assembled components. Popular examples include snap rings, retaining clips, toggle clamps, hose clamps, and cable ties.


Fasteners play a vital role in CNC machining processes by ensuring precise assembly, structural integrity, and ease of maintenance. Whether it's bolts, screws, nuts, washers, rivets, or clips, each type has its unique characteristics and area of application. Understanding these variations and selecting the appropriate fastener is crucial for creating durable and efficient products. With continuous advancements in CNC machining technology, manufacturers now have access to various fastening options that cater to specific requirements across different industries. CNC Milling