Cle-line C65809 Round Die 5/16-24 Unf 1 in Od Hss

Product Description

The CLE-LINE C65809 is a round threading die designed for cutting external threads on rod, bolt stock, and fastener blanks. Sized for 5/16-24 UNF threads with a 1-inch outside diameter and 3/8-inch thickness, this die is manufactured from high-speed steel (HSS) for durability under the heat and friction generated during threading operations. The adjustable design allows technicians to fine-tune thread fit by compressing or expanding the die slightly within its holder. Right-hand thread direction follows standard UNF convention. This die is part of the Series 0710 line and is suited for use in a standard round die stock of matching OD.

This die is used in machine shops, maintenance facilities, and trade applications where new external threads must be cut or damaged threads must be chased and restored. Common applications include fabricating threaded fasteners, rethreading damaged bolts in the field, and custom threading of rod stock. It is well-suited for mechanical trades, pipefitters, millwrights, and industrial maintenance technicians working with fine-thread fastener assemblies in steel or other ferrous materials.

Key Features

• 5/16-24 UNF thread size for fine-thread applications
• 1-inch outside diameter fits standard round die stocks of matching OD
• High-speed steel construction resists heat buildup during cutting
• Adjustable design allows thread fit fine-tuning within the die stock
• Right-hand thread direction - standard UNF orientation
• 3/8-inch thickness provides stable engagement during threading

Compatibility

Designed for use in a round die stock with a 1-inch die seat. Suitable for cutting 5/16-24 UNF right-hand external threads on ferrous and compatible non-ferrous stock.

Installation Notes

Threading dies are installed and used by machinists, millwrights, and maintenance technicians. Secure the die firmly in a matching round die stock before use and ensure the set screw engages the adjustment slot. Apply cutting oil to the workpiece before threading to extend die life and improve thread quality. When adjusting thread fit, make small incremental adjustments and test fit frequently to avoid oversizing the thread.