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Michael Kaindl
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The Locknut Whisperer
The Locknut Whisperer

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Michael Kaindl's posts

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Prevailing Torque Locknuts - What "Zinc Flake" Coatings Do to Prevailing Torque
Since RoHS  became effective in the European Union in 2006, there has been a global push to eliminate Cadmium (among other substances) from use in fasteners.  Cadmium plating provides a level of lubricity that helps prevent galling in all-metal locknuts, an...

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Prevailing Torque Locknuts - Nylon Insert Locknuts
Nylon Insert locknuts are very popular.  Aztech Locknut has been selling them for decades; our manufacturer's I.D. is the orange colored ring. Their popularity is attributable to the following characteristics: in popular sizes they are relatively inexpensiv...

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Prevailing Torque Locknuts - When they don't work, What happened?
You can't be in the locknut business very long without encountering someone having problems with locknuts in their applications.  When a locknut manufacturer's registered quality system includes rigorous quality controls, and parts pass their qualification ...

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Prevailing Torque Locknuts - How They Work
The
prevailing torque in prevailing torque locknuts comes from localized plastic
deformation to an interference fit with continuous sliding during assembly.
 Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

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Prevailing Torque Locknuts - How They Work
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly.  Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

Post has attachment
Prevailing Torque Locknuts - How They Work
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly.  Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

Post has attachment
Prevailing Torque Locknuts - How They Work
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly.  Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

Post has attachment
Prevailing Torque Locknuts - How They Work
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly.  Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

Post has attachment
Prevailing Torque Locknuts - How They Work
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly.  Let's break this down. Localized plastic deformation - Some of the starting threads need to be able...

Post has attachment
Prevailing Torque Locknut Testing and Qualification
In addition to inspections common to all internally threaded fasteners (nuts), prevailing torque locknuts are inspected for prevailing torque performance.  Prevailing torque is the resistance to assembling or disassembling the locknut and mating part when t...
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