Carbide Machine Threading Die 1/4-20 UNC
A solid carbide circular die for external threading on bolts and rods, compatible with lathes and threading machines. Ideal for high-precision, high-volume production in automotive and aerospace industries. Falls under 8207.40.60.00 as an interchangeable tool for threading operations.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as tools for tapping (internal threads only)
Distinction between taps (internal) and dies (external) may affect specific subheadings within tapping/threading.
If for hand-operated adjustable open dies used manually
Hand tools like adjustable pipe dies are separated from machine-interchangeable threading tools.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide material certificates confirming carbide composition to support classification and duty assessment
• Label packages with thread specifications (e.g
• UNC, pitch) and machine compatibility for smooth CBP review
• Avoid classifying as adjustable dies if fixed geometry, which could lead to incorrect subheading
Related Products under HTS 8207.40.60.00
Pipe Threading Chaser Set 3/4 Inch
Renewing chasers for re-threading worn pipes, used in die heads for 3/4-inch iron pipe sizes. Essential for maintenance in oil & gas and construction. Fits 8207.40.60.00 as other threading parts/tools.
Collapsible Threading Die M20 x 2.5
Self-opening die for quick-change threading on metric M20 bolts in production lines. Collapsible design for easy chip evacuation in machine tools. Classified as other threading tool under 8207.40.60.00.
Spiral Point Threading Tap 5/16-18
Spiral point tap that pushes chips forward for blind hole tapping in machining centers. Gun tap design for high-efficiency production threading. Under 8207.40.60.00 for specialized taps.
Thread Rolling Die Pair M12
Matched pair of carbide dies for chipless thread rolling on fasteners using forming machines. Increases thread strength without material removal. 8207.40.60.00 as other threading tools.
Nut Tapping Tool for Pneumatic Machines
Interchangeable spindle-mounted tap for automated nut forming and threading in assembly lines. Designed for high-cycle pneumatic tools. Fits 'other' in 8207.40.60.00.
HSS Threading Tap Set M6-M12
A set of high-speed steel (HSS) taps designed for creating internal threads in metal workpieces during tapping operations. These interchangeable tools are used with hand taps or machine tools for precise threading tasks in manufacturing and repair. Classified under 8207.40.60.00 as other tools specifically for tapping or threading.