Value Collection 315-1138 Round Die 5/16-48 1 in Od Hss

Product Description

The VALUE COLLECTION 315-1138 is a round threading die designed to cut external threads on bolts, studs, and rod stock. This die produces a 5/16-48 thread profile following the Unified National Special (UNS) standard and features an outside diameter of 1 inch for use in standard round die stocks. Constructed from high-speed steel (HSS), it maintains cutting edge integrity under the heat generated during threading operations. The adjustable design allows the technician to fine-tune thread fit by slightly expanding or compressing the die across its split. Right-hand thread direction is the standard orientation for the majority of fastener applications. Machinists, maintenance mechanics, and tool-and-die tradespeople install this die in a matching die stock or holder.

This die is suited for threading operations on ferrous and non-ferrous materials where a 5/16-48 UNS thread form is required. The 5/16-48 pitch is a fine-thread designation used in specialized fastener applications where finer thread engagement is needed compared to standard UNC or UNF pitches. It is appropriate for use in machine shops, maintenance facilities, and field service environments. The 1-inch outside diameter is a common round die form factor compatible with widely available die stocks.

Key Features

• 5/16-48 UNS thread form for specialized fine-pitch external threading
• 1-inch outside diameter fits standard round die stocks and holders
• High-speed steel construction resists heat and wear during cutting
• Adjustable split-die design allows thread fit fine-tuning
• Right-hand thread direction matches the majority of fastener applications

Compatibility

Designed as an OEM-style replacement or standard tooling die for use in any round die stock or holder accepting a 1-inch outside diameter round die.

Installation Notes

Install the die into a matching 1-inch round die stock and secure the set screws before threading. Ensure the workpiece is securely clamped and apply cutting fluid appropriate for the workpiece material to extend die life and improve thread quality. Use the adjusting screw to set die opening before starting the cut, and back off periodically to clear chips during threading. Inspect threads with a go/no-go gauge after cutting to verify fit.