What are Nut Thread Inserts and Rivet Nuts?
Nut thread inserts, also known as threaded inserts or helical inserts, are cylindrical metal fasteners with internal threads. They are designed to be inserted into a pre-drilled hole to provide a strong and durable threaded connection. Rivet nuts, on the other hand, are similar to nut thread inserts but have a flange on one end, allowing them to be installed by riveting or crimping.
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Why Use Nut Thread Inserts or Rivet Nuts?
Nut thread inserts and rivet nuts are great for blind applications, where access to the backside of the workpiece is limited or impossible. They provide a reliable and secure threaded connection without the need for welding or tapping. These fasteners are commonly used in industries such as automotive, aerospace, electronics, and furniture manufacturing.
Benefits of Nut Thread Inserts and Rivet Nuts
There are several benefits to using nut thread inserts or rivet nuts:
- Increased strength: Nut thread inserts and rivet nuts distribute the load over a larger area, increasing the strength of the connection.
- Vibration resistance: The threaded connection created by nut thread inserts and rivet nuts is less prone to loosening due to vibrations.
- Easy repair and maintenance: If a threaded hole becomes damaged, nut thread inserts or rivet nuts can be easily replaced without the need for costly repairs.
- Wide range of materials: Nut thread inserts and rivet nuts are available in various materials, including stainless steel, brass, and aluminum, to suit different applications.
Types of Nut Thread Inserts and Rivet Nuts
There are several types of nut thread inserts and rivet nuts available, including:
- Helical inserts: These are the most common type of nut thread inserts, featuring a coiled design that provides excellent thread engagement and pull-out resistance.
- Key-locking inserts: These inserts have a locking mechanism that prevents the insert from rotating, ensuring a secure and stable connection.
- Flanged rivet nuts: These rivet nuts have a flange on one end, providing a larger bearing surface and increased pull-out resistance. https://amzn.to/3G7V1aR
- Smooth body rivet nuts: These rivet nuts have a smooth body without any external threads, making them ideal for applications where a flush surface is desired.
Top Selling Brands and DIY-Friendly Tool Kits
When it comes to nut thread inserts and rivet nuts, there are several top-selling brands known for their quality and reliability. Some of these brands include:
- Heli-Coil: Heli-Coil is a well-known and higher priced brand that offers a wide range of helical inserts and installation tools. I recommend and sell them at my store to professionals, but here is a compatible more affordable DIY set. https://amzn.to/3sA0kgb
- Marson: Marson is known for its high-quality rivet nuts and installation tools, suitable for both professional and DIY use. It too is on the higher price end so here is a compatible more affordable Astro set that I sell at my store and have used myself. https://amzn.to/3G0cTED
For the DIY person, nut thread inserts and rivet nuts are relatively easy to use, especially with the wide range of tool kits available on the market. These tool kits typically include the necessary installation tools, such as mandrels, nosepieces, and wrenches, making the installation process straightforward and hassle-free.
Whether you're a professional or a DIY enthusiast, nut thread inserts and rivet nuts offer a reliable and efficient solution for creating strong threaded connections in blind applications. With the availability of various types and reputable brands, you can find the right fasteners and tools to suit your specific needs.
My name is Tim Tadlock and I've been in the tool and fastener business for over 30 years. I hope you enjoyed this blog post and that it has been helpful to you in some way.
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