Talk:Threaded insert

ultrasonic insertion
Many if not most inserts in smaller plastics are pressed in using ultrasonics to locally heat the insert and create flow. Not sure if this goes in the molded-in section which is mostly about plastics, or the pressed-in section as that is the process. Opinions?Ken (talk) 22:09, 22 January 2014 (UTC)

thread repair vs threaded insert
This article is misleading, in that there is no comprehensive discussion of thread repair as a process. Threaded inserts are one, of several, products used for thread repair.

A more appropriate section would be "thread repair" with "threaded insert" as a sub-section.

I suggest a more comprehensive treatment like the following:

Thread repair is a common maintenance process that occurs when a bolt or fastener breaks inside a threaded hole. A wide variety of industrial applications may require thread repair, including, but not limited to: hydraulic, pneumatic, engine repair, transmission repair and machine tools.

Three primary products and processes are commonly used for thread repair: Heli-Coil ®, Keensert, and Gardsert ®.

Heli Coil ® is a registered trademark of Emhart Teknologies, Inc. and was first develyoped as a thread repair solution in the 1930s and continues to be widely used today.

Heli-Coil ® inserts are precision formed screw thread coils of stainless steel wire having a diamond shape cross section.

Repair using Heli-Coil ® requires re-tapping (or re-threading) the damaged hole, aligning the Heli-Coil thread into the re-tapped hole, and installing it with a specific Heli-Coil ® installation tool.

Heli-Coil ® is a registered trademark of Emhart Teknologies Inc.,Worldwide.

Keensert (also known as Keysert) also requires re-tapping the damaged hole. After installation into the tapped hole, the locking keys on each Keensert/Keysert are driven down through the threads of the parent material, locking the insert firmly and permanently in place.

Gardsert ® self-tapping thread repair requires no special tools. The damaged hole is cleaned by using a standard or metric drill bit, and then the Gardsert ® is installed using a regular nut and bolt. Because the Gardsert ® re-threads the hole as it is screwed into the parent material, it is considered "self-tapping." It requires no special tools, and no particular experience or expertise. It is also considered a permanent repair.

Gardsert ® is a registered trademark of Gard Specialists, Inc.

Each of the primary thread repair systems are designed for thread repair of multiple sizes of holes and various materials such as steel, aluminum, stainless steel, etc.

Thread repair allows for efficient and cost-effective repair of threaded holes in parts for a large number of industries such as railroads, power generation, food processing, automotive industry and many heavy industrial maintenance operations.

GARD Specialists Co. email gardspec@newnorth.net —Preceding unsigned comment added by Batboyfan (talk • contribs) 18:28, 5 February 2009 (UTC)


 * I'm a little confused on where this is all coming from. The title of the article is "threaded insert". I could see an "applications" section added that would list "thread repair" as one entry, but threaded inserts are used for more than just thread repair. For example, mold-in inserts to add tapped holes to an injection molding, or a steel insert might be pressed into an aluminium workpiece to increase the strength of the threads. Wizard191 (talk) 16:32, 7 February 2009 (UTC)


 * Agree. Threaded inserts and thread repair are different, if related topics. They should each hasve their own article. Septimus ii (talk) 15:49, 11 August 2011 (UTC)

Would a reducer bushing qualify as a threaded bushing?
http://www.toolingu.com/definition-570135-26707-reducing-bushing.html ? SChalice 03:24, 19 March 2012 (UTC)

Specification / measurement
How are bush measurements or specifications given? 86.143.81.219 (talk) 13:17, 27 November 2012 (UTC)

Meaning of "bushing"
Can the subject of this article be referred to as "bush"? Please comment at Talk:Bush. – Uanfala (talk) 22:01, 21 June 2021 (UTC)