Value Collection 365-4004 Hex Rethreading Die 4-8 Rh

Product Description

The VALUE COLLECTION 365-4004 is a hex rethreading die designed to restore damaged or corroded external threads to their original 4-8 UNS thread profile. Machined from carbon steel, this die delivers the hardness and edge retention needed for field and shop rethreading work on fasteners, bolts, and threaded rod. The 7-inch hex body allows direct engagement with a standard wrench or rethreading handle. Right-hand thread direction matches the most common fastener orientation found in HVAC, plumbing, and general mechanical assemblies. Weighing 0.5 pounds, it is compact enough for a service bag or tool chest.

This rethreading die is suited for maintenance and repair work across residential and commercial applications where external threads have been damaged by corrosion, cross-threading, or impact. Typical users include HVAC technicians, pipefitters, plumbers, and maintenance mechanics who need to salvage threaded fasteners in the field without full replacement. The 4-8 UNS thread designation covers coarse-thread bolts and rods common in equipment mounting and structural hardware.

Key Features

• 4-8 UNS thread size restores coarse external threads on bolts and threaded rod
• Right-hand thread direction matches standard fastener orientation
• 7-inch hex body engages directly with a wrench or rethreading handle
• Carbon steel construction provides hardness suitable for rethreading steel fasteners
• Compact 0.5-pound weight makes it practical for field carry

Compatibility

Designed as a rethreading die for 4-8 UNS right-hand external threads on bolts, cap screws, threaded rod, and similar fasteners used in general mechanical, HVAC, plumbing, and industrial maintenance applications.

Installation Notes

Rethreading dies are installed and operated by mechanics, pipefitters, and service technicians. Before use, de-energize, depressurize, or isolate the equipment containing the fastener being rethreaded. Apply a thread-cutting lubricant to the die and the damaged thread before starting to reduce friction and extend die life. Turn the die slowly and back off periodically to clear chips. Do not force the die past resistance, as this can further damage the thread or fracture the die.