Value Collection 314-1244 Round Die 5/16-18 Unc Hss

Product Description

The VALUE COLLECTION 314-1244 is a round threading die designed to cut external 5/16-18 UNC threads on rod, bolt stock, and fastener blanks. Made from high-speed steel (HSS), this die maintains cutting edge hardness through the heat generated during threading operations. The adjustable design allows the operator to dial in thread fit by expanding or compressing the die slightly within its holder, enabling both roughing and finishing passes. It cuts right-hand threads and is sized for standard 5/16-18 Unified National Coarse thread form. Machinists, maintenance technicians, and metalworking tradespeople are the primary users of this tooling.

This die is suited for manual threading operations using a round die stock or die holder on mild steel, aluminum, brass, and similar machinable materials. It is appropriate for production threading at the bench, field repair work where a bolt or stud needs to be re-threaded, or fabrication tasks requiring new external threads cut to UNC specification. The 5/16-18 size is among the most common fastener thread sizes in general mechanical and structural applications.

Key Features

• High-speed steel construction retains hardness and cutting performance under threading heat
• Adjustable die body allows fine-tuning of thread fit for roughing or finishing cuts
• Right-hand thread cutting matches the standard direction for UNC fastener applications
• 5/16-18 UNC thread form covers one of the most widely used coarse-thread fastener sizes
• Round die profile fits standard round die stocks and holders

Compatibility

Designed for use in standard round die stocks and holders sized to accept this die diameter. Cuts 5/16-18 UNC external threads per Unified National Coarse thread standard.

Installation Notes

Secure the die firmly in a properly sized round die stock before use. Apply cutting oil to the workpiece and die throughout the threading operation to reduce heat, extend tool life, and improve thread finish. Ensure the workpiece is chamfered at the end to help the die start squarely. Dies should be inspected for chipping or wear before each use; a damaged cutting edge produces out-of-tolerance threads.