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Keystone Inserts: Application Field and Working Principle

Keystone inserts are widely used in various industries, including automotive, aerospace, electrical and HVAC. In the past, standard nuts and bolts have been used to attach parts to flat surfaces, but Keystone inserts provide a superior way to do this. Keystone inserts are composed of two separate parts, a threaded nut-like element and a tough, hard-bodied, plastic core. The core is often anodized for corrosion resistance.

The core of the Keystone insert is thick-walled and is usually made from nylon, polyethylene, or ABS. There are also insert types that are made from metal such as brass, aluminum, and stainless steel. The core is equipped with a thread pattern corresponding to the internal thread of the nut. The core is designed to fit flush against the surface of the mounting part.

How Keystone Inserts Work?

The Keystone insert works by compressing and locking the threads when you screw the nut into the insert. This locks the nut in place and prevents it from backing out and causing a loose connection. The way the threads are compressed when tightened is what makes the Keystone insert the preferred way to attach parts to flat surfaces. When the nut is tightened, the threads are pushed into the core, locking them in place. The plastic core also has the ability to deform slightly and fill in any imperfections on the surface of the mounting part.

Advantages of Keystone Inserts

Keystone inserts have a number of advantages over standard nuts and bolts for attaching parts to flat surfaces. They are:

• Stronger than standard nuts and bolts.
• Easier to install than standard nuts and bolts.
• Less prone to stripping and fatigue failure.
• Less likely to back out and cause loose connections.
• More vibration resistant due to the compressible threads.
• Able to fill in any imperfections on the mounting surface.

Keystone inserts provide a secure and reliable way to attach parts to flat surfaces in a variety of industries. The inserts are easy to install, provide superior strength and can withstand a considerable amount of vibration and motion. The inserts are also highly resistant to corrosion and can be used in corrosive environments.

Conclusion

Keystone inserts offer a superior way to attach parts to flat surfaces in a variety of applications. The inserts are strong, easy to install, vibration resistant, and highly resistant to corrosion. Keystone inserts provide a secure and reliable way to attach components, allowing for greater reliability and performance.

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