Irwin 6431 Hex Rethreading Die 10-32 Right Hand

Product Description

The IRWIN 6431 is a hex rethreading die designed to restore damaged or corroded external threads without replacing the fastener or fitting. The die cuts a 10-32 UNF right-hand thread profile, making it a standard tool for thread repair on machine screws and small-diameter fasteners. The 1-inch hex body seats securely in a standard die stock or wrench, allowing controlled torque during rethreading. Constructed from carbon steel, the 6431 delivers sufficient hardness for rethreading most common steel and softer-metal fasteners encountered in mechanical, electrical, and plumbing service work.

This die is suited for maintenance and repair tasks where a 10-32 UNF thread has been stripped, cross-threaded, or corroded. Typical applications include restoring threads on machine screws found in electrical enclosures, HVAC equipment panels, motor mounting hardware, and light mechanical assemblies. It is appropriate for both shop bench use and field repair work where a portable die set is part of the service kit.

Key Features

• 10-32 UNF thread size for common machine screw repair applications
• Right-hand thread direction matches standard fastener orientation
• 1-inch hex body fits standard die stocks and adjustable wrenches
• Carbon steel construction provides adequate hardness for steel and soft-metal fasteners
• Compact single-die format for inclusion in portable tool kits

Compatibility

Designed as an OEM-style rethreading die for restoring 10-32 UNF right-hand external threads on machine screws and similar small-diameter threaded fasteners.

Installation Notes

Thread repair with a rethreading die is typically performed by maintenance technicians and trade professionals during equipment service. Before rethreading, de-energize any equipment and clean debris from the damaged thread area. Seat the die squarely on the fastener and apply steady, even pressure to avoid cutting a new thread path over the damaged one. Cutting oil or thread lubricant is recommended to extend die life and improve cut quality.