Value Collection 315-1137 Round Die 5/16-40 1 in Od Hss

Product Description

The VALUE COLLECTION 315-1137 is a round threading die designed to cut external threads on rod, bolt stock, and cylindrical workpieces. It produces a 5/16-40 UNS right-hand thread profile and features an adjustable design that allows the technician to fine-tune thread fit without swapping tools. The die measures 1 inch in outside diameter, making it compatible with standard round die stocks of that size. Constructed from high-speed steel (HSS), it maintains cutting-edge hardness at elevated temperatures generated during threading operations. This die is used by machinists, pipefitters, maintenance mechanics, and industrial tradespeople working in fabrication, repair, or custom assembly applications.

This die is suited for threading ferrous and non-ferrous materials in both shop and field environments. The 5/16-40 UNS thread designation is a Unified National Special pitch and is used in applications requiring a finer thread count than standard UNC on 5/16-inch diameter stock. The adjustable feature is particularly useful when threading worn or slightly undersized rod, or when a close-tolerance fit is required on mating fasteners. It is appropriate for both production threading and single-piece repair work.

Key Features

• 5/16-40 UNS thread form with right-hand helix for standard fastener compatibility
• 1 inch outside diameter fits standard round die stocks designed for 1-inch dies
• High-speed steel construction resists heat buildup during extended cutting cycles
• Adjustable design allows thread tolerance fine-tuning without changing the die
• Right-hand thread direction matches the vast majority of standard threaded assemblies

Compatibility

Designed for use in any standard round die stock or die holder accepting a 1-inch outside diameter round die. Thread profile is 5/16-40 UNS right-hand.

Installation Notes

Secure the die firmly in the die stock before use and verify the adjusting screw is set to the desired thread tolerance. Apply cutting oil or threading fluid to the workpiece to extend die life and improve thread quality. For adjustable dies, make a test cut on scrap material and check the fit with a mating nut before threading production parts. Replace the die if chipped cutting edges or galling are observed, as a damaged die will produce out-of-tolerance threads.