Jergens 215-066352 Thread Locking Insert M6x1 M10x1.25

Product Description

The JERGENS 215-066352 is a thin wall keylocking thread locking insert designed to provide a secure, permanent internal thread in parent materials that may be too weak or too thin to hold standard threads reliably. With an M6 x 1 internal thread and an M10 x 1.25 external thread, this insert installs into a prepared host bore and locks in place using the keylocking mechanism, preventing rotation or pullout under load. The 10 mm overall length and thin wall design suit applications where space is limited. Manufactured from 303 stainless steel with a passivated finish, it resists corrosion and meets NAS 1394 standards.

This insert is suited for use in aerospace, defense, industrial machinery, and precision equipment applications where thread repair or thread reinforcement is required in aluminum, magnesium, plastic, or other low-strength parent materials. The thin wall profile allows installation in thinner-section workpieces where standard keylocking inserts would not fit. It follows metric coarse thread standards, making it compatible with M6 x 1 fasteners commonly used in metric-dimensioned assemblies. Installation is typically performed by a machinist or maintenance technician using a dedicated keylocking insert installation tool.

Key Features

• M6 x 1 internal thread with 6H class of fit for precise fastener engagement
• M10 x 1.25 external thread with 6G class of fit for accurate host bore installation
• Thin wall keylocking design for use in limited-clearance or thin-section workpieces
• 303 stainless steel construction with passivated finish for corrosion resistance
• 10 mm overall length in metric coarse thread standard
• Meets NAS 1394 standards for thread locking inserts

Compatibility

Designed as an OEM-style replacement or new-installation thread locking insert for metric coarse threaded assemblies requiring an M6 x 1 internal thread within an M10 x 1.25 host bore.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using the correct keylocking insert driver tool specified for this insert series. The host bore must be prepared to the correct tap drill size and tolerances per the insert specifications before installation. Ensure all equipment is de-energized and secured before performing thread repair work on assemblies connected to mechanical or electrical systems. Do not attempt installation without the proper keylocking installation tool, as improvised methods can damage the insert or the parent material.