Exploring the Different Types of Fasteners in CNC Machining--cncmass.com(aviation fasteners Chloe)

  • Time:
  • Click:83
  • source:FANYA CNC Machining


CNC machining is a precise manufacturing process that utilizes computer-controlled machines to shape and produce various components for different industries. In this article, we will delve into the world of CNC machining and discuss the importance of fasteners, their different types, and how they are produced.

What are Fasteners?

Fasteners are essential components used in CNC machining. These small devices hold objects together, preventing them from moving or separating under stress or vibration. They play a critical role in making sure that structures and assemblies remain intact, secure, and functional.

Types of Fasteners Used in CNC Machining:

1. Screws:
Screws are one of the most common types of fasteners used in CNC machining. They have threaded shafts designed to be tightened using a screwdriver or wrench. Screws come in different head shapes (such as flat, round, pan, or hex) and thread styles (including machine threads, wood threads, and self-tapping threads).

2. Bolts:
Similar to screws, bolts are externally threaded fasteners commonly used in CNC machining. Unlike screws, bolts require nuts to secure the joint. They come in various lengths, diameters, and thread pitches to accommodate different applications.

3. Nuts:
Nuts are internally threaded fasteners that mate with bolts or threaded rods to create strong and secure connections. They are available in different shapes, such as hexagonal, square, wing, or flanged, each serving specific purposes in CNC machining.

4. Washers:
Washers are thin metal plates with holes in the center. They are placed between fastening components to distribute the load evenly and prevent damage due to friction. Flat washers and lock washers are commonly used in CNC machining to provide stability and reduce the risk of loosening.

5. Rivets:
Rivets are permanent mechanical fasteners used in CNC machining to join two or more materials together. They consist of a cylindrical shaft with a head on one end and are often deformed by hammering, riveting machines, or press tools to create a strong bond.

6. Inserts:
Inserts are threaded devices inserted into pre-drilled holes that enhance the strength and endurance of materials when fastened. They provide sturdy threads for screws and bolts in softer substrates or those prone to wear and tear.

7. Anchors:
Anchors are essential fasteners used to secure objects to materials where there is a lack of solid foundation. Common anchor types include wall anchors, concrete anchors, and toggle bolts. They expand or engage upon installation, providing necessary stability.

Production Techniques for Fasteners:

Fasteners undergo various production techniques in CNC machining, ensuring precision and quality. Here are a few commonly employed manufacturing methods:

1. Machining:
Different fasteners, such as screws and nuts, are machined using lathes, milling machines, or other computer-controlled cutting equipment. This process involves removing excess material from metal bar stock to shape them into desired forms.

2. Cold Heading:
Cold heading is a popular method for producing small- to medium-sized fasteners like bolts, screws, and rivets. It involves feeding wire through a die and then performing cold forming operations to produce the desired shape and thread.

3. Hot Forging:
Hot forging is suitable for creating large or complex fasteners. The process involves heating the material above its recrystallization temperature and shaping it under pressure. It allows for better structural integrity due to grain flow alignment.

4. Injection Molding:
Injection molding is primarily used for plastic fasteners. The technique utilizes molten thermoplastic materials injected into molds, which are then cooled to form the desired shape for subsequent use in CNC machining.


In summary, fasteners play an integral role in CNC machining by ensuring the stability and integrity of assembled components. The different types of fasteners mentioned, including screws, bolts, nuts, washers, rivets, inserts, and anchors, cater to diverse industrial needs. Understanding their significance and production techniques allows manufacturers and engineers to select the most suitable fasteners for their specific applications in CNC machining processes. CNC Milling CNC Machining