Value Collection 366-0362 Hex Rethreading Die 9/16-18 Lh Unf

Product Description

The VALUE COLLECTION 366-0362 is a hex rethreading die designed to restore damaged or corroded external threads on fasteners, bolts, and fittings. Made from carbon steel, it cuts a 9/16-18 UNF left-hand thread profile, making it the right tool when standard right-hand dies are not appropriate. Rethreading dies are used to clean up existing threads rather than cut new ones from scratch, saving time on the job versus full thread chasing or replacement. Machinists, mechanics, and maintenance technicians keep these in rotation for field repairs and shop work where thread integrity needs to be restored quickly.

This die is suited for use on left-hand threaded fasteners and fittings in mechanical, automotive, and industrial maintenance applications. Left-hand thread configurations appear on specific spindles, axles, propeller shafts, and rotating equipment where reverse-torque would loosen a standard right-hand fastener. The 9/16-18 UNF designation indicates a fine-thread pitch appropriate for applications requiring a tighter thread engagement and greater resistance to vibration loosening.

Key Features

• 9/16-18 UNF thread size for fine-pitch thread restoration
• Left-hand thread direction for specialized fastener applications
• Carbon steel construction provides sufficient hardness for rethreading mild steel and similar materials
• Hex body profile accepts standard die stocks and hex wrenches for controlled torque application
• Compact size and light weight at 0.09 pounds for easy handling and portability

Compatibility

Designed as an OEM-style rethreading die for use in standard die stocks and holders that accept a hex body rethreading die in the 9/16-18 left-hand UNF thread standard.

Installation Notes

Installation is performed by machinists, mechanics, or maintenance technicians using a standard die stock or adjustable die holder. Ensure the fastener or workpiece is secured before applying the die, and apply cutting fluid to reduce friction and extend die life. Always verify thread direction before use — forcing a left-hand die onto a right-hand threaded part will cause damage. Follow applicable shop safety practices when operating hand-threading tools.