Understanding Types of Fasteners and Their Role in CNC Machining--cncmass.com(brass value per pound Faithe)

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Fasteners are essential components used in various industries, especially in the field of Computer Numerical Control (CNC) machining. These connectors play a crucial role in securing parts together, ensuring structural stability in machines, equipment, and structures. In this article, we will explore different types of fasteners commonly utilized in CNC machining processes, along with their distinctive features, benefits, and production methods.

1. Screws:
Screws are one of the most widely used fasteners due to their versatility. They feature helical ridges (threads) on their outer surface that securely hold objects together. Common screw types include machine screws, wood screws, and self-tapping screws. Manufacturing screws involves the process of thread cutting or rolling, where metal wires are shaped into precise threads. Different materials such as stainless steel, titanium, and brass can be chosen based on specific requirements and applications.

2. Bolts:
Bolts are similar to screws but are often larger and have external male threads. They typically require a matching nut to secure joints tightly. Bolts come in several variations like hex bolts, carriage bolts, and eye bolts. Producing bolts involves using hot forging techniques from blanks, which are then machined to achieve the desired shape and threading. High-strength materials like alloy steel are often preferred for producing durable and reliable bolts in CNC machining.

3. Nuts:
Nuts are female mating counterparts to bolts. They provide a threaded hole and enable easy installation/removal of bolts without damaging the object being secured. Hex nuts, coupling nuts, and wing nuts are common examples. Nut manufacturing requires precision tooling and shaping of materials like brass, aluminum, and stainless steel to produce accurate threading within tolerances suitable for CNC machining.

4. Rivets:
Rivets are permanent fasteners used when welding or screwing isn't practical or feasible. They consist of a cylindrical body with a pre-shaped head at one end and are commonly made of aluminum, steel, or copper. Riveting necessitates drilling holes through the materials to be joined and then inserting the rivet shank into the hole. By deforming the unheaded end (using hammering or specialized machinery), the material expands, creating a secure joint.

5. Clips and Clamps:
Clips and clamps serve as effective fasteners for temporarily holding components together during CNC machining operations. These devices exert pressure to secure parts without requiring additional tools. Spring clips, hose clamps, and C-clamps are some common examples. Production methods involve stamping flat sheets of metal or wire bending processes to create customized designs that provide adequate grip and stability.

6. Washers:
While washers might not seem like conventional fasteners, they play an essential role in CNC machining applications. Flat washers, spring washers, and lock washers distribute the load evenly and protect surfaces from damage caused by tightening fasteners. Producing washers involves cutting circular blanks from sheet metal with proper dimensions and internal/external diameters according to industry standards.


Fasteners form the backbone of CNC machining processes, providing pivotal support and stability to various structures and equipment. Understanding the diverse types of fasteners available in the market enables engineers and manufacturers to select appropriate options for specific applications. Whether it's screws, bolts, nuts, rivets, clips, clamps, or washers, knowing their production techniques and distinctive features empowers professionals to optimize their CNC machining projects effectively. When working on complex precision assemblies or simple fixes, choosing the right fastener is paramount for reliable and durable outcomes. CNC Milling CNC Machining