Value Collection 314-1256 Round Die 7/16-20 Unf Hss

Product Description

The VALUE COLLECTION 314-1256 is a round threading die designed to cut external threads on rod, bolt blanks, and cylindrical stock. It produces a 7/16-20 UNF right-hand thread profile in high-speed steel (HSS) construction, which maintains cutting hardness under friction and heat generated during threading operations. The adjustable design allows the technician to fine-tune thread fit by compressing or expanding the die within its holder for a snug or free-running result. Machinists, maintenance mechanics, and plumbers rely on round dies like this one for field repairs and shop threading tasks where a tap-and-die set is the correct tool.

This die is suited for threading mild steel, aluminum, brass, and similar workable metals in both shop and field environments. Typical applications include creating replacement threaded fasteners, restoring damaged threads on hydraulic fittings, and fabricating custom-length studs or bolts. The 7/16-20 UNF specification makes it a standard choice for fine-thread fastener work common in automotive, HVAC equipment frames, and light structural assemblies where fine-thread engagement is preferred over coarse-thread alternatives.

Key Features

• 7/16-20 UNF thread form for fine-pitch external threading applications
• High-speed steel construction resists heat and wear during repeated cuts
• Adjustable design allows thread-fit tuning without changing the die
• Right-hand thread direction matches standard fastener convention
• Round die format fits standard die stocks and holders

Compatibility

Designed as a standard round die for use in compatible die stocks and holders sized for the 314-1256 die body. Fits applications requiring a 7/16-20 UNF external thread profile.

Installation Notes

A licensed machinist or experienced mechanic should secure the workpiece firmly in a vise before threading. Apply cutting oil generously to the die and workpiece to reduce heat buildup and extend die life. Back the die off a half-turn periodically to break chips and prevent binding. Inspect threads with a UNF thread gauge after cutting to confirm proper fit before final assembly.