Exploring the Various Types of Fasteners in CNC Machining--cncmass.com(is bronze stronger than brass Myra)

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Fasteners play a crucial role in the world of manufacturing and construction. These essential components hold together different parts, allowing structures to withstand external forces and maintain integrity. In this article, we will delve into the realm of CNC machining and explore the various types of fasteners used in this precise and efficient manufacturing process.

1. Nuts and Bolts:

Nuts and bolts are possibly the most commonly recognized type of fastener employed across industries. Typically made of steel or stainless steel, these fasteners consist of a cylindrical threaded shaft (bolt) that inserts through an equally threaded hole (nut). The bolt is tightened using torque, creating tension and joining two or more objects securely.

2. Screws:

Screws bear resemblance to nuts and bolts but possess a different functionality. Rather than requiring a separate nut, screws contain threads along their entire length for direct insertion into pre-drilled holes. With diverse head options like flat countersunk, pan, or button heads, screws provide adjustable and reliable fastening solutions.

3. Rivets:

Rivets offer excellent strength and durability, making them an ideal choice for permanent fastening connections. Commonly composed of aluminum, rivets work by inserting a solid rod-like pin through pre-drilled holes before deforming one end with applied force. This deformation expands the other end into a “mushroom” shape, effectively locking the connected materials in place.

4. Washers:

Washers prove indispensable in CNC machining as they distribute loads, prevent damage from tightening, and ensure secure fastening. Flat washers, made from metals such as steel, brass, or copper, fit beneath nuts or bolt heads to evenly distribute clamping pressure over a larger surface area. Lock washers, on the other hand, boast built-in mechanical features to resist loosening under vibration or rotational forces.

5. Springs:

While often overlooked, springs are vital fasteners that aid in maintaining tension and alignment within various CNC-machined applications. These flexible components store mechanical energy when compressed or stretched, returning to their original shape upon release. Different types of springs, such as compression, extension, or torsion springs, serve specific purposes and provide critical functional benefits.

6. Clips and Clamps:

Clips and clamps find extensive use across different industries due to their versatility and ease of installation. Commonly manufactured from materials such as steel, aluminum, or plastic, these fastening solutions grip onto surfaces firmly without requiring additional threaded connections. Clips and clamps effortlessly secure cables, hoses, panels, or pipes together, offering convenience and reliability.

7. Welding and Soldering:

While not traditional mechanically fasteners, welding and soldering processes bond pieces together through the application of heat. In CNC machining, welding involves fusing metal parts using intense heat generated by electric arcs or flames. Similarly, soldering utilizes low-temperature melting alloys to join metals with improved electrical conductivity. These methods provide robust and permanent fastening options.


Fasteners form a significant part of CNC machining, facilitating secure connections and supporting structural integrity. The diverse range of fastener types available ensures compatibility with various materials and project requirements. Whether it be nuts and bolts, screws, rivets, washers, springs, clips, or even welding and soldering techniques, choosing the appropriate fastener for CNC machining operations proves essential to achieving optimum functionality, strength, and durability. CNC Milling CNC Machining