Ask an Engineer – Installing #4-40 Threaded PEM Nuts in Your Custom Enclosures @ProtocaseInc
Ask an Engineer – Installing #4-40 Threaded PEM Nuts in Your Custom Enclosures  @ProtocaseInc
Uploaded November 2025 | Updated September 2026, 1 week ago
In this episode, we answer a Protocase Designer user’s question about adding a threaded nut inside an enclosure so a screw from an external mount can fasten securely.

✅ Short answer — yes, Protocase can do that!

Our engineer explains:
• How self-clinching PEM nuts are installed
• When to choose “-2” or “-3” versions for thicker materials
• Where to find detailed spec sheets for precise design verification

If you’re working in Protocase Designer, these tips will help you choose the right hardware for a clean, reliable assembly.

Need fastener specs? Check out Pemnet.com for full diagrams and part numbers.

Download Protocase Designer for free: protocasedesigner.com

Have a question for the next episode? Leave it in the comments!

#PEMfasteners #protocase #askanengineer #customenclosures #designengineering #protocasedesigner
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Ask an Engineer – Installing #4-40 Threaded PEM Nuts in Your Custom Enclosures

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