Value Collection 365-0561 Hex Rethreading Die 7/8-9 Unc

Product Description

The VALUE COLLECTION 365-0561 is a hex rethreading die designed to restore damaged or corroded external threads on bolts, studs, and threaded rod. It cuts a 7/8-9 UNC (Unified National Coarse) thread profile in a right-hand direction, making it the standard choice for restoring the most common inch-series fastener thread found in HVAC equipment frames, pipe hangers, structural supports, and mechanical room hardware. The die is machined from carbon steel, providing the hardness needed to chase and clean threads on mild steel and iron fasteners. Technicians in HVAC, plumbing, and general mechanical service keep rethreading dies on hand for field repairs where replacing a fastener is not practical.

This die is suited for use in residential and light commercial mechanical applications where 7/8-9 UNC fasteners are common, including equipment mounting bolts, condenser base hardware, pipe support rods, and structural anchor bolts. It is used with a standard hex die stock or adjustable die holder that accepts the hex body profile. The right-hand thread direction covers the vast majority of standard fastener repair scenarios encountered in the field.

Key Features

• 7/8-9 UNC thread profile restores the most common coarse-thread inch-series fastener size in that diameter range
• Right-hand thread direction matches standard fastener convention
• Carbon steel construction provides the hardness needed for chasing threads on mild steel and iron fasteners
• Hex body design fits standard die stocks and adjustable die holders
• Compact size and light weight at 0.33 pounds makes it practical for a field toolbox

Compatibility

Designed as a general-purpose rethreading die for 7/8-9 UNC external threads on mild steel and iron fasteners. No specific equipment model compatibility was stated in the product data.

Installation Notes

Thread rethreading dies are used by HVAC technicians, plumbers, pipefitters, and general mechanical trades. Before chasing threads, clean the fastener of debris, rust, and grease, and apply a cutting fluid or thread lubricant to reduce die wear and improve thread quality. Secure the workpiece before applying torque to the die stock. Inspect the restored thread with a mating nut before returning the fastener to service.