Jergens 215-065906 Thread Locking Insert 1/2-13 Heavy-duty

Product Description

The JERGENS 215-065906 is a heavy-duty keylocking thread locking insert designed to provide permanent, vibration-resistant thread reinforcement in metal assemblies. It features a 1/2-13 internal thread and a 3/4-16 external thread in UNC configuration, with an overall length of 0.620 inches. Manufactured from C1215 carbon steel with a zinc phosphate coating, this insert is built for demanding industrial and mechanical applications where thread stripping or pullout failure is not acceptable. Licensed technicians, machinists, and maintenance professionals install this insert to restore or reinforce tapped holes in ferrous and non-ferrous base materials.

This insert is suited for use in production machinery, structural assemblies, and repair applications where standard threaded holes require reinforcement or where a parent material cannot support load-bearing thread engagement on its own. The zinc phosphate finish provides baseline corrosion resistance and aids in adhesion during installation. It conforms to NAS 1394 standards, making it appropriate for aerospace, defense, and precision industrial settings where certified thread insert performance is required.

Key Features

• 1/2-13 internal thread with Class 2B fit for standard fastener compatibility
• 3/4-16 external thread with Class 2A fit for positive engagement in the parent bore
• Heavy-duty keylocking design prevents insert rotation under torque and vibration
• C1215 carbon steel construction with zinc phosphate coating for durability and corrosion resistance
• Meets NAS 1394 standard for certified thread insert performance
• Compact 0.620-inch length fits shallow-bore and space-constrained applications

Compatibility

Designed as an OEM-style thread locking insert for use in tapped holes requiring a 3/4-16 external thread bore in UNC applications per NAS 1394 specifications.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using a properly sized keylocking insert installation tool. The parent material bore must be drilled and tapped to the correct 3/4-16 thread specification before insert installation. Power down and de-energize any associated equipment before performing thread repair or insert installation on in-service machinery. Do not use an impact driver or oversized tools that may damage the keylocking slots or distort the insert body.