HS Code for Machine screws
Machine screws are classified under HS code 7318.15. This code falls within Chapter 73, which covers articles of iron or steel. Specifically, heading 7318 encompasses screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers, and similar articles. Machine screws are defined by their threaded shank, designed to be fastened into a tapped hole or used with a nut. Classification under 7318.15 is driven by the fact that these are threaded articles of iron or steel that are not coach screws or wood screws. The distinction is critical because machine screws have a finer, more precise thread compared to self-tapping or wood screws. According to Section XV Note 2, these are considered 'parts of general use,' meaning they are classified here regardless of the final machine they are intended for. Whether the screw is made of stainless steel, carbon steel, or alloy steel, as long as it is an iron/steel threaded fastener of this type, 7318.15 is the appropriate designation.
Products Included
- Pan head machine screws
- Flat head machine screws
- Hex drive machine screws
- Socket head cap screws
- Stainless steel machine bolts
- Threaded fasteners for precision machinery
Common Misclassification
A frequent point of confusion occurs between 7318.15 and 7318.14. HS code 7318.14 is specifically for self-tapping screws. While they look similar, self-tapping screws create their own threads in the material, whereas machine screws require a pre-formed internal thread. Additionally, 7318.12 (wood screws) is often used incorrectly for machine screws used in composite materials. It is also important to avoid 7318.16, which is reserved for nuts; while screws and nuts are often sold together, they must be classified separately unless they are presented as a single assembly in specific kits.
FAQ
What is the HS code for Machine screws?
The HS code for machine screws made of iron or steel is 7318.15.
Does the HS code change if the screw is made of stainless steel?
No, 7318.15 covers threaded screws and bolts of iron or steel, which includes stainless steel variants, though specific national tariff lines may further subdivide by material type.
Industry
Frequently Asked Questions
What is the HS code for Machine screws?
The HS code for Machine screws is 731815 (Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers).
How do I classify Machine screws for customs?
Machine screws is classified under HS code 731815 — Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers. This is a 6-digit subheading level code.
Is the HS code for Machine screws the same in all countries?
The base HS code 731815 for Machine screws is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.