Jergens 215-064983 Key-locking Thread Repair Kit 42 Pc

Product Description

The JERGENS 215-064983 is a 42-piece key-locking thread repair kit designed to restore damaged or stripped internal threads in metal workpieces. Key-locking inserts use a locking key mechanism to anchor the insert into the parent material, preventing rotation under load - making this kit appropriate for high-stress fastener applications in production, maintenance, and repair environments. The kit covers metric internal thread sizes from M5x0.8 through M12x1.75 in both coarse and fine pitches, and includes installation tooling. Machinists, millwrights, and maintenance technicians are the primary users of this type of repair system.

This kit is suited for thread repair in metalworking, industrial maintenance, and MRO (maintenance, repair, and operations) environments where metric fastener threads have been damaged, cross-threaded, or worn. The range of included sizes - M5x0.8, M6x1, M8x1, M8x1.25, M10x1.25, M10x1.5, M12x1.25, and M12x1.75 - covers a broad spread of common metric fastener specifications found in machinery, equipment frames, and fabricated assemblies. The carbon steel insert material makes it well suited for use in steel and cast iron parent materials.

Key Features

• 42 carbon steel key-locking inserts spanning M5x0.8 through M12x1.75 internal thread sizes
• Covers both metric coarse and metric fine thread standards
• Insert lengths range from 8 mm to 16 mm (16.0000 decimal inches longest)
• Includes installation tool - no separate tooling purchase required for basic installation
• External thread sizes included: M8x1.25, M10x1.25, M12x1.25, M14x1.5, M16x1.5
• Key-locking design resists insert rotation under torque and vibration loads

Compatibility

Designed as an OEM-style thread repair solution for use in steel and cast iron parent materials where metric internal threads require restoration. Compatible with M5x0.8, M6x1, M8x1, M8x1.25, M10x1.25, M10x1.5, M12x1.25, and M12x1.75 internal thread applications.

Installation Notes

Installation is typically performed by machinists or qualified maintenance technicians. The parent material bore must be drilled and tapped to the correct external thread specification before insert installation - this kit does not include a drill or tap, so appropriate tooling must be sourced separately. Ensure the workpiece is secured and the bore is clean and free of debris before driving the insert. Follow the insert manufacturer's torque and installation depth guidance using the included installation tool.