Square Die HSS - UNF 5/16 x 24

• for cutting or reworking external threads for UNF 5/16 x 24
• for workshop, maintenance, tool room, and repair work on bolts, studs, and threaded shafts
• for use in a square-die holder that supports the die form correctly
• Process: manual driving or assisted driving depending on your holder and machine setup
• Use: thread cutting, re tapping, and thread cleaning depending on condition

Note Use a square die only with a suitable square-die holder and check the external thread requirement before starting.

• Square die form provides a defined holder requirement for external thread work.
• The thread designation UNF 5/16 x 24 helps prevent confusion between similar metric, Unified, or pipe threads.
• HSS material is stated in the product data and supports controlled cutting in suitable materials.
• The product focuses on external threads, which keeps the selection separate from taps and plug gauges.

• A square die needs a matching square-die holder, so use a round-die holder only for round dies with the correct diameter.

1. Confirm that the required external thread is UNF 5/16 x 24 before selecting the die.
2. Choose a holder that matches the die shape and size.
3. Prepare the bolt, stud, or shaft with a clean start chamfer.
4. Apply cutting fluid that fits the workpiece material and process.
5. Place the die square to the workpiece axis before turning.
6. Cut or rework the thread with controlled pressure and steady alignment.
7. Reverse carefully when needed to clear chips from the cutting area.
8. Clean the finished external thread before assembly.
9. Check the thread with a matching nut, gauge, or inspection process where required.

• 1 piece Square Die HSS - UNF 5/16 x 24

• Product type: square die
• Thread system: UNF
• Thread designation: UNF 5/16 x 24
• Material: HSS
• Die form: square die
• Thread target: external threads
• Direction: RH
• Package quantity: 1

What thread does this die cut?

It cuts or reworks an external thread for UNF 5/16 x 24 when the workpiece and drawing match the product data.

Is this tool for internal or external threads?

The die is for external threads, while internal threads require a matching tap for UNF 5/16 x 24.

Which holder do you need?

Use a suitable square-die holder that supports the die form and keeps the tool square to the workpiece axis.

What should you check before starting?

Check the external diameter preparation, start chamfer, thread direction, holder setup, and lubrication before applying torque.

Can it be used as a gauge?

No, the die is a cutting or reworking tool and final inspection should use the required gauge or quality process.

Where can you find round die information?

Additional round die information is available here: Technical information round dies as PDF

What prevents damage during reworking?

A clean start, square alignment, and low controlled pressure prevent the die from crossing or tearing the first threads.

Where can you find the threading tools catalog?

You can find the threading tools catalog here: VD 23 catalog as PDF