HS Code 7318Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel

What HS code 7318 covers

Heading 7318 groups small parts that join or lock other parts in place. People also search for it as HSN code 7318. The name changes, but the goods are the same.

Material matters here. A bolt made of plastic or brass belongs somewhere else.

One simple question splits the heading in two. Does the article have a thread? If yes, look at codes 731811 to 731819. If no, look at codes 731821 to 731829.

Threaded articles: screws, bolts and nuts

Start here when the item has a screw thread. Check the named codes first and keep the catch-all codes for last.

Wood screws and coach screws each have their own code.

• 731811 is for coach screws.
• 731812 is for wood screws that are not coach screws.
• 731813 is for screw hooks and screw rings.
• 731814 is for self-tapping screws, which cut their own thread.
• 731816 is for threaded nuts.
• 731819 is for any other threaded screws, bolts and nuts that fit no earlier code.

Non-threaded articles: washers, rivets and cotters

These items have no thread. Many buyers search for the hs code for steel washers, and there are two answers. The type of washer decides which one applies.

Every other washer goes to 731822. Rivets go to 731823. A non-threaded article that fits none of these goes to 731829.

HS code 7318 or a nearby heading? How to decide

Work through three steps. First, confirm the item is a fastener of the kind named in this heading. Second, check for a thread. Third, match the exact product type inside that group.

Leave the catch-all codes for the end. These are 731815, 731819 and 731829. Their wording says they take only what is not named elsewhere in the same group, so a named code always wins.

This is the difference between hs 7317 and 7318, and the other close calls:

• Heading 7317 is for nails, tacks, drawing pins, corrugated nails and staples. A nail is not a screw.
• Heading 7320 is for springs and leaves for springs. A spring washer is the exception, since it has its own code, 731821.
• Heading 7307 is for tube or pipe fittings such as couplings and elbows.
• Heading 7326 is the fallback for other iron or steel articles. Try 7318 first.

Buyers, suppliers and import export data for steel fasteners

Once you know your code, you can look at real trade. EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.

Not sure which code fits your product? Try the HS code classifier first, then search the records for the code it gives you.