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Products
Use our new Product Finder tool, download our Product Catalog, let us help you get custom parts, or learn how to use our products with our Engineering Guides.

Products Overview
- Datasheets (formerly Bulletins)
  
  Download Catalog
  
  Product Finder
  
  Engineering Guides
  
  Request Samples
- Inventory Search
  
  Customized Parts
  
  Where to Buy
  
  Haeger® Installation Equipment
  
  ATLAS® Blind Rivet Nuts
  
  SI® Inserts for Plastics
Industries
PEM® offers innovative fastening solutions for a variety of applications across industries like Automotive Electronics, Consumer Electronics, Datacom and more.

Industry Overview
- Automotive Electronics
  
  Consumer Electronics
  
  Datacom and Telecom
  
  Defense
- EV and Charging
  
  Industrial and Commercial
  
  Medical
  
  Sheet Metal and Metal Enclosures
Resources
Request a Sample
Resources

Dive in to our Engineering Guides and Download Center to learn more about PEM innovation.

Resources Overview
- Animation Library
  
  CAD Drawings
  
  Compliance and Certs
  
  Datasheets (formerly Bulletins)
  
  Download Center
  
  Self-Clinching vs Weld
  
  What is Self-Clinching Technology?
- Download Catalog
  
  Engineering Guides
  
  FAQ
  
  Glossary of Terms
  
  Request Samples
  
  PEM® Virtual Consult
Engineering Services
Engineering Services

What truly sets us apart is our ability to provide value-added services that our competitors can’t. Browse our full suite of expert capabilities.

Services Overview
- Innovations Lab
  
  PEMedge® Services Overview
  
  PEM® Virtual Consult
- Request Samples
  
  Technical Training
Company
We are PEM®

Meet the behind-the-scenes forces holding the world together. Maybe you’re our next dreamer.

About Us
- Careers
  
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  Our Core Values
- Contact Us
  
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  Where to Buy

CAD (0) ▾

In Reference To :

Comparison :

Item # AESM4B3.1, Countersunk Head Threaded Insert - Closed End Keyless - Metric
Item # AESM4B3.1, Countersunk Head Threaded Insert - Closed End Keyless - Metric
Item # AESM4B4.1, Countersunk Head Threaded Insert - Closed End Keyless - Metric
Item # AESM4B4.1, Countersunk Head Threaded Insert - Closed End Keyless - Metric
Item # AESM4B5.1, Countersunk Head Threaded Insert - Closed End Keyless - Metric

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