HS Code for Thread rolling machine

HS code 8463.20 applies to thread rolling machines, which are machine-tools designed for working metal, sintered metal carbides, or cermets without removing material. This distinction is critical in Chapter 84. Heading 8463 covers "other" machine-tools for working metal where the process involves deformation rather than cutting. Thread rolling is a cold-forming process that forms threads into the surface of a blank by pressing it against rotating or reciprocating dies. Because this process displaces the metal rather than cutting it away, it is excluded from heading 8459 (which covers metal-removing machines) and placed under 8463. The classification is governed by the mechanical action of the machine. If the machine performs multiple functions, its primary function determines the code under GRI 3(b), but dedicated thread rollers are specifically named in subheading 8463.20. These machines are essential in the production of fasteners like bolts and screws, where the rolling process provides superior grain structure and strength compared to cut threads. The machines may be manual, semi-automatic, or fully automated with hopper feeds, but the core classification remains 8463.20 based on the non-removal of material.

Products Included

• Flat die thread rolling machines
• Planetary thread rolling machines
• Two-die cylindrical thread rollers
• Three-die cylindrical thread rollers
• Automatic bolt thread rolling machines

Common Misclassification

The most common error is classifying these under 8459.70, which is for threading machines that remove metal. Another misclassification is 8462.90, which covers other forging or stamping machines, but 8463.20 is more specific for thread rolling.

FAQ

What is the HS code for Thread rolling machine?

The specific HS code for thread rolling machines is 8463.20.

Does a thread rolling machine remove metal?

No, thread rolling machines work by plastic deformation (displacing metal) rather than cutting, which is why they are in 8463 instead of 8459.