Question 1

How do I select the right shank code for my precision fabrication project?

Accepted Answer

Selecting the right shank code involves considering factors like hardware type, thread code, and sheet thickness. Start by identifying your desired self-clinching PEM® nut style based on material type and thickness. Then, choose the corresponding thread code and find the minimum sheet thickness for your material. The shank code that aligns with these factors is the one you should select. A guide provided by Approved Sheet Metal can help simplify this process.

Question 2

What are self-clinching PEM® nuts and how do they work?

Accepted Answer

Self-clinching PEM® nuts are specialized internally threaded fasteners commonly used in sheet metal fabrication. When inserted and pressed into a mounting hole in a workpiece, they displace the host material, causing it to "cold flow" into a recess in the shank of the nut. This locking mechanism makes the self-clinching nut a permanent part of the workpiece, providing increased thread strength and eliminating the need for welding.

Question 3

What is the significance of part numbers in self-clinching PEM® nuts?

Accepted Answer

Part numbers in self-clinching PEM® nuts carry essential information about the nut's specifications. The part number consists of various codes, including the type of nut, material code, thread size code, shank code, and finish. These codes provide valuable details such as the type of material the nut is suitable for, the thread size, shank size, and finishing options. Understanding part numbers helps users quickly identify the right nut for their project.

Question 4

Why does shank size matter in self-clinching nuts?

Accepted Answer

Shank size is crucial in self-clinching nuts as it determines the nut's ability to grip the material and function effectively. If the shank is too thick for the material, it might protrude when pressed, affecting the aesthetics and function. On the other hand, if the shank is too thin for thick material, the nut won't grip the material securely. Choosing the correct shank size is essential for ensuring a reliable and secure fastening in precision fabrication projects.

Question 5

How can I use shank codes to choose the right self-clinching PEM® nuts?

Accepted Answer

To use shank codes effectively, follow these steps:

Identify your desired nut style based on material and thickness.
Choose the corresponding thread code.
Find the minimum sheet thickness for your material.
Determine the shank code that matches your hardware type, thread code, and sheet thickness.
Use the part number formula (Type-Material Code—Thread Code—Shank Code-Finish) to locate the appropriate nut.

By following this process, you can confidently select the correct self-clinching PEM® nuts for your precision fabrication projects. If you need expert assistance, don't hesitate to consult with the Approved Sheet Metal team.

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