What You Should Know About Nutplates

Fasteners can be broken down into subcategories based on their designs and functions, one popular type in aircraft being the threaded bolt. These fasteners, in particular, require support from an additional part known as a nutplate. This blog will cover what a nutplate is and how it is used in applications to provide lasting security in the aerospace industry.

A nutplate is an assembly that consists of a built-in nut with a supporting anchor frame. The nut is surrounded by an anchor of two legs pointing in opposite directions, often forming a triangular shape. The nut is a threaded hole in the center into which a threaded bolt or similar type of threaded rod is inserted. The external threading of the inserted component twists into place with the internal threading of the built-in nut to securely fasten the assembly being held together. Meanwhile, the legs have one hole each, both of which are unthreaded and function to rest on the outside of the structure being secured.

Although nutplates are designed to support a fastener like a bolt or rod, they are installed with a different type of fastener. Rivets are used to mechanically join multiple parts like any fastener, but they are different from the fasteners used with the nut of a nutplate because they are unthreaded. Instead, rivets have a smooth body with a head on one end and a tail on the other. During installation, a rivet is placed through both ends of the unthreaded holes. The tail of the rivet is then deformed to secure the entire nutplate in place. Depending on the way the tail is deformed, it may expand up to one and a half times its original size. This causes the tail to wrap around the other side of the hole in a manner that prevents the rivets from coming loose from the nutplate and assembly. The threaded nut in the center is then the only hole left available for a fastener.

The fact that a nutplate supports more than one type of fastener is advantageous for aerospace applications because it combines the security of both threaded and unthreaded support. As aircraft tend to shake during flight, threaded fasteners may loosen over time, and the security of the assembly being held together will be compromised. However, the deformed tails of the rivets will not shake loose from their holding positions. At the same time, a nutplate has the third point of security for a threaded fastener, providing two types of security that work in tandem on the assembly.

Across aerospace applications, nutplates find a home in various assemblies as secure inlets for fasteners. When you are looking for high-caliber nutplates and fasteners to hold your structures together, look no further than Internet of Industrials. As one in a series of websites owned and operated by ASAP Semiconductor, we make quality the cornerstone of our operations and guarantee our customers access to an inventory of only top-quality and reliably sourced items from trusted manufacturers around the world. With a supply chain stretching across the United States, Canada, and the United Kingdom, we are equipped to offer expedited shipping to even our most remote customers. Allow us to become your parts procurement partner today when you fill out a Request for Quote form as found on our website. Simply include as much detail as possible regarding the purchase of your desired item like desired quantities, shipping deadlines, and target prices. Within 15 minutes, our team of experts will respond to your request with a custom quote for your comparisons. For more information regarding our products and services, call or email at any time; we are available to help 24/7x365!


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November 9, 2022

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