E-z Lok 650-10F Thread Locking Insert M10 X 1.25

Product Description

The E-Z LOK 650-10F is a standard wall thread locking insert designed to install a permanent M10 x 1.25 internal thread into a parent material using a 9/16-12 external thread. Manufactured from C12L14 carbon steel with a smooth, rolled finish, this insert provides a durable threaded anchor in materials that cannot reliably hold a direct tap. The overall length is 33/64 inches (0.515 inches), making it suitable for applications where axial space is limited. Licensed trade professionals and industrial maintenance technicians use this insert to restore or establish load-bearing metric threads in metal assemblies.

This insert is applied in situations where a metric internal thread is required but the host material has been stripped, is too soft, or requires a conversion from unified to metric threading. The M10 x 1.25 internal thread conforms to Metric Fine and Metric Coarse standards, while the 9/16-12 external thread engages the parent material. Typical applications include machinery repair, automotive components, and structural assemblies where thread integrity is critical. The standard wall design suits most common installation scenarios without requiring an oversized bore.

Key Features

• M10 x 1.25 internal thread with 2B class of fit for reliable fastener engagement
• 9/16-12 external thread with 2A class of fit for secure installation in parent material
• C12L14 carbon steel construction provides strength and machinability
• Standard wall design compatible with standard tap drill sizes
• Smooth, rolled finish supports consistent torque transfer and seating
• Compact 33/64 inch overall length suits thin-section applications

Compatibility

Designed as an OEM-style replacement or new-installation thread locking insert for applications requiring an M10 x 1.25 internal thread established via a 9/16-12 external thread in a standard tap preparation.

Installation Notes

Installation is performed using a standard tap drill sized for the 9/16-12 external thread, followed by tapping the parent material before driving the insert. Ensure the parent material is securely fixtured and the bore is free of chips and debris before installation. A dedicated E-Z LOK installation tool is recommended to avoid damaging the internal thread during driving. Always verify thread engagement depth meets the load requirements of the fastened joint before returning the assembly to service.