Understanding Different Types of Fasteners for CNC Machining--cncmass.com(rivets for metal Nina)

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Fasteners play a crucial role in countless industries and applications, ensuring the structural integrity and longevity of various products. The field of Computer Numerical Control (CNC) machining heavily relies on different types of fasteners to secure components during the manufacturing process. This article aims to provide an insightful overview of the diverse range of fasteners used in CNC machining, their characteristics, and how they contribute to successful production.

1. Nuts and Bolts:

Nuts and bolts are one of the most common types of fasteners utilized in CNC machining. These threaded fasteners consist of two interconnected parts – a male screw known as a bolt and its female counterpart called a nut. They function by applying tension between joined components, holding them securely together. Available in various materials like steel, stainless steel, and brass, nuts and bolts come in a wide range of sizes, thread pitches, and head types, adapting to specific application requirements.

2. Screws:

Screws are similar to nuts and bolts but often have pointed ends and self-tapping capabilities. Designed to be drilled directly into pre-prepared holes, screws create threads within the material, resulting in a robust connection. Philips, slotted, hexagonal, and Torx heads are popular options based on the ease of use and torque requirements. With advancements in design, custom-made screws now exist, enabling fine-tuned adjustments and optimized connections for CNC machined items.

3. Rivets:

Rivets are permanent fasteners that do not require access from both sides of the workpiece, making them suitable for assembled structures where joint movement is minimal. Typically cylindrical or semi-hollow in shape, rivets feature a solid shank that can be hammered or pressed into place, forming a strong bond. Constructed from aluminum, steel, or copper alloys, rivets find extensive use in industries such as aerospace and automotive, where weight reduction, vibration resistance, and durability are paramount.

4. Clips and Clamps:

Clips and clamps provide an efficient way to secure objects temporarily or hold them in place during the CNC machining process. These fasteners often possess spring-like properties, exerting force when tightened. Adjustable clips come in handy for varied material thicknesses, while clamps facilitate quick and easy assembly/disassembly procedures. From simple paper clamps to sophisticated toggle clamps, these versatile fastening solutions ensure stability and accuracy at different stages of CNC fabrication.

5. Inserts and Standoffs:

Inserts and standoffs offer reliable threaded connections without requiring direct contact with the parent material. Often used in composites or soft materials prone to deformation under stress, inserts reinforce threads within a pre-drilled hole, allowing repeated tightening and loosening cycles. Standoffs, on the other hand, elevate one component above another while maintaining electrical isolation, ensuring proper airflow, heat dissipation, or alignment. Both inserts and standoffs enhance versatility and customization options during CNC machining processes.


CNC machining relies heavily on utilizing diverse types of fasteners to create precise and enduring products. Understanding the various characteristics and applications of nuts and bolts, screws, rivets, clips and clamps, inserts and standoffs enables manufacturers to harness the full potential of CNC technology. This article provided an overview of these fastener options, shedding light on their importance and contribution to successful production processes. By carefully selecting and implementing suitable fasteners, CNC machinists can guarantee secure and accurate results across industries ranging from aerospace to electronics and beyond. CNC Milling CNC Machining