E-z Lok 653-10F Thread Locking Insert M10 X 1.25

Product Description

The E-Z LOK 653-10F is a standard wall thread locking insert designed to provide a secure, permanent internal thread in materials that require a stronger threaded connection than the base material alone can support. Machined from 303 stainless steel with a bright finish, this insert features an M10 x 1.25 internal thread and a 9/16-12 external thread. It measures 0.515 inches in length and is compatible with both metric coarse and metric fine thread standards. Installation requires a standard tap. Maintenance technicians, machinists, and field service professionals install this type of insert when repairing stripped threads or building assemblies in corrosion-prone environments.

This insert is suited for applications in industrial, marine, and mechanical service environments where stainless steel corrosion resistance is required. The M10 x 1.25 internal thread accommodates standard metric fasteners, while the 9/16-12 external thread anchors into a prepared host bore. Typical use cases include thread repair in aluminum housings, fabricated steel weldments, and cast components where thread stripping is a known failure point. It ships individually but carries a minimum order quantity of 5 units.

Key Features

• M10 x 1.25 internal thread with a 2B class of fit for standard metric fastener engagement
• 9/16-12 external thread with a 2A class of fit for positive locking into host material
• 303 stainless steel construction with bright finish for corrosion resistance
• Standard wall design compatible with standard tap installation
• Metric coarse and metric fine thread standard compatibility
• Compact 0.515-inch overall length for use in tight bore depths

Compatibility

Designed for use in any host material bored and tapped to accept a 9/16-12 external thread, with a required internal thread size of M10 x 1.25. Compatible with standard tap tooling as specified by the manufacturer.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard tapping tools sized for the 9/16-12 external thread. Ensure the host bore is properly drilled and tapped to the correct depth before driving the insert. De-energize or lock out any associated equipment before performing thread repair work on installed assemblies. Do not exceed the designed class of fit tolerances when preparing the mating bore.