Value Collection 365-1071 Hex Rethreading Die 1-20 Unef

Product Description

The VALUE COLLECTION 365-1071 is a hex rethreading die designed to restore damaged or corroded external threads to their original specification. Built from carbon steel, this die cuts a 1-20 UNEF (Unified Extra Fine) thread profile in the right-hand direction. At 1 inch thick, it provides the depth needed for stable, accurate thread restoration on bolts, studs, and threaded rod. Licensed machinists, pipefitters, millwrights, and experienced maintenance technicians reach for rethreading dies when a fastener surface is too damaged to accept a nut cleanly but replacement is not practical.

This die is suited for maintenance and repair operations across industrial, commercial, and mechanical service environments. The 1-20 UNEF designation indicates a 1-inch nominal diameter with 20 threads per inch, a pitch used on precision mechanical assemblies, hydraulic fittings, and instrument hardware where fine thread engagement is required. It is used in shop or field settings wherever a hex die stock or appropriate wrench can be applied to the workpiece.

Key Features

• 1-20 UNEF thread profile restores fine-pitch external threads on 1-inch diameter fasteners
• Right-hand thread direction suits standard fastener orientation
• Carbon steel construction provides hardness suitable for rethreading steel and softer alloy fasteners
• Hex outer profile fits standard die stocks and hex wrenches for controlled torque application
• 1 inch thickness delivers adequate cutting depth for thorough thread restoration

Compatibility

Designed as a replacement or supplemental rethreading die for use in standard hex die stocks and rethreading sets that accept 1-inch hex dies with a 1-20 UNEF right-hand thread specification.

Installation Notes

Rethreading dies are installed and operated by machinists, maintenance technicians, or trade professionals using a compatible hex die stock or wrench. Before use, clean the damaged thread area and apply appropriate cutting oil to reduce friction and extend die life. Start the die squarely on the thread axis to avoid cross-threading and work the die back periodically to clear swarf. Follow applicable shop safety practices and wear appropriate eye and hand protection during operation.