Exploring the Various Types of Fasteners in CNC Machining--cncmass.com(deburring Borg)

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Fasteners play a crucial role in various industries, including manufacturing and engineering. In CNC machining, fasteners are utilized to securely hold together components during the fabrication process. As precision is paramount in this method of production, it becomes essential to understand the different types of fasteners available for use. In this article, we will delve into the world of CNC machining and explore the diverse range of fasteners used within this field.

1. Bolts and Screws:
Bolts and screws are ubiquitous fasteners that find widespread applications in CNC machining. These threaded fasteners come in numerous sizes and specifications. The head design varies between hexagonal, round, flat, or pan heads, depending on the specific requirements of the project. Whether it's holding two components together or securing parts to a structure, bolts and screws provide excellent grip and durability.

2. Nuts:
Nuts are inseparable companions to bolts and screws. They secure the fastener in place by creating a reliable connection. With various designs such as standard hex, acorn, wing, or lock nuts, they address specific needs. Nylon locking nuts ensure enhanced vibration resistance, while brass nuts exhibit excellent corrosion resistance properties. Proper selection of nuts ensures stronger assemblies in CNC machining processes.

3. Washers:
Washers are another vital component in CNC machining operations. They serve multiple purposes, primarily providing uniform load distribution, reducing friction, and preventing surface damage. Flat washers, split lock washers, and spring washers all contribute significantly to enhancing the effectiveness of fastening systems. By spreading forces and eliminating abrasion, washers bolster the longevity and reliability of CNC machined products.

4. Rivets:
Commonly used in sheet metal work, rivets are permanent fasteners ideal for joining materials with low tensile strength such as aluminum or plastic. Unlike other fasteners, rivets do not require access from both sides of the material. Hence, they suit confined spaces and complex designs. CNC machining techniques accurately create holes for precise rivet insertion, resulting in robust structures.

5. Inserts:
Inerts are threaded devices used when attaching fasteners to softer materials such as wood or plastic. They provide sturdy threads into which bolts or screws can be tightened without damaging or stripping the surrounding material. In CNC machining, inserts are typically made from metals like brass or stainless steel, ensuring durability and compatibility with different materials.

6. Clips and Clamps:
Clips and clamps serve a vital purpose in securing components together during CNC machining processes. Spring clips, C-clamps, U-clamps, and toggle clamps provide temporary or permanent fixturing solutions, enabling efficient and accurate operations. These fasteners ensure stability, allowing precision milling, drilling, or other machining techniques.

7. Pins and Dowels:
Pins and dowels are cylindrical objects primarily used for aligning two or more components precisely. The accuracy provided by these fasteners ensures proper positioning during CNC machining. Depending on the application, the types include straight pins, taper pins, and grooved dowels. They offer superior strength and alignment while minimizing unwanted movement and rotation.


Understanding the various types of fasteners used in CNC machining is crucial for achieving excellent results. Whether it's high-strength bolts, versatile nuts, essential washers, reliable rivets, convenient inserts, functional clips and clamps, or precise pins and dowels, each type plays a unique role in assembling components accurately and securely. By harnessing the power of these fasteners, CNC machinists can confidently fabricate products with utmost precision, speed, and durability. CNC Milling CNC Machining