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Self-Clinching Fastening machine in Metal Fabrication



As you can infer by the title of this blog, today we are talking about self-clinching fasteners, what they are and how to use them.

When it comes to fastening into sheet metal, self-clinching fasteners are an excellent solution. Unlike other fasteners connected through an attachment feature, self-clinching fasteners are made to fit in with the core of the related material.

How Do Self-Clinching Fasteners Work? How Are They Used?

To precisely attach a self-clinching fastener, you would need specific preparation beforehand. Like a rivet, self-clinching fasteners are pressed or forced into a hole cavity in the material. Once the fastener is in, it is secured with the head sitting flush to the metal face. The installation of a self-clinching fastener is a one-time matter, and it is permanent.

Variations of Self-Clinching Fasteners

The fasteners are not always the same as the others. Self-clinching fasteners can be bought in various styles and purposes, adding to their flexibility and efficiency when installed. Some of these options are:

  • Standoffs

  • Studs

  • Panel fasteners

  • Sheet-joining style

  • Plain stud

  • Pin

Standoffs are pretty much exactly what you would imagine them to be. These are fasteners that make a gap between the connected parts. They are used when a raised position is required versus just assembling two pieces, allowing direct contact.

Next, stud fasteners are pre-threaded bolts permanently fixed to a surface. These can be used as connection points secured by tightening down a nut on them with the solid to be connected in between. They are generally appropriate for pre-drilled panel boxes, panel parts, equipment holders, etc.

Panel fasteners offer a method to close a panel tightly without using a handle or a latch that can be easily opened. The panel still needs to be accessed often. However, the self-clinching fastener keeps it closed and harder to open without the right tools. The panel fastener itself never disconnects from the panel it is joined into, evading the problem of losing small parts when uninstalled.

Fastening sheet metal applications are typical, but sheet-joining fasteners can also be used in appliances, vehicles, and computer hardware like servers and telecommunications equipment. Sheet-joining fasteners are made to suit sheet metal and are designed to keep layers connected. This is usually when the sheet metal panel is required to stay in place but sometimes is removed when access to controls or internal sensors is necessary.

Pilot pins are unalike from a stud in that they are not threaded. They are fundamentally a basic stud that sticks out from the anchored surface. They are commonly used to align parts with another part in another location. Self-Clinching Nut Fasteners and Types

There is also a collection of nut hardware to pick from concerning self-clinching hardware. Unlike regular fasteners, which usually protrude a stud portion outward, nuts make a cavity into which a securing screw or stud can be threaded. This hardware style also uses the same installation advantage of anchoring down tightly, creating an astonishingly tough and resilient locking feature for attachments and screw-in bolt attachments. Nut self-clinching hardware comes in different and diverse types, including:

Standard nut format

Miniature nut styles

Floating nut

Blind nut

Nylon insert nut

The standard self-clinching nut is an insert with an internally threaded cavity. The tightening screw threads right through and stays in place as it is secured down on the nut itself anchored in the surface. The stud will expand to the other side as it threads and projects into the other side.


The floating nut provided flexibility when an assembly must be merged with a screw on the other side if things don’t align properly.

The flush nut is used in a very similar way to the blind nut. That makes a flush installation on both sides of the sheet metal instead of only one external side. However, no part is sticking out of the other side of the sheet metal it is secured into.


With Aston Precision securing their brand new NC-controlled Self clinch fastener inserting machine, we have increased our capability in the Sheet metal fabrication area. We serve our clients all over Australia from our manufacturing facility in Dandenong and Hallam - in Melbourne. Talk to us regarding your next Metal Fabrication project!

Sales@astonprecision.com

Phone: 03 8595 6706

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