Osg 2706500 Round Threading Die 5/16-18 Unc Hss

Product Description

The OSG 2706500 is a round threading die designed to cut external threads on ferrous workpieces including iron and steel. It produces 5/16-18 UNC right-hand threads and is made from high-speed steel (HSS) for durability under repeated use. The die measures 1.5 inches in outside diameter and 0.5 inches in thickness, fitting standard round die stocks of the corresponding size. An adjustable set screw allows the operator to fine-tune thread fit by opening or closing the die slightly. This tool is used by machinists, maintenance technicians, and trade professionals who need to chase or cut new external threads in a shop or field setting.

This die is suited for threading operations on iron and steel fasteners, rods, and fittings in general manufacturing, maintenance, and repair applications. The 5/16-18 UNC designation makes it a common size for mechanical fastener work across industrial, HVAC, plumbing, and structural applications. It belongs to OSG Series 134 and is sold individually.

Key Features

• 5/16-18 UNC thread form for standard unified coarse-pitch external threading
• High-speed steel construction for wear resistance on iron and steel workpieces
• Adjustable design allows fine-tuning of thread fit via set screw
• Right-hand thread direction, the standard for most fastener applications
• 1.5 inch outside diameter fits common round die stocks of that size
• 0.5 inch thickness provides adequate tool body for controlled thread cutting

Compatibility

Designed for use on iron and steel workpieces. Fits round die stocks accepting a 1.5 inch outside diameter die. Suitable for cutting or chasing 5/16-18 UNC right-hand external threads.

Installation Notes

This die is installed by a machinist or skilled technician into a matching round die stock before use. Secure the die firmly in the stock using the set screw before beginning any threading operation. Apply appropriate cutting fluid to the workpiece to reduce heat and extend tool life. Inspect threads with a go/no-go gauge after cutting to verify conformance.