Heading 7318

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

48 declarable lines

Heading 7318 covers small iron and steel fasteners: screws, bolts, nuts, rivets, washers, cotter pins and similar articles. The heading splits first into threaded articles (7318.11 through 7318.19) and non-threaded articles (7318.21 through 7318.29). Threaded lines are further divided by article type, by shank or thread diameter above or below 6 mm, and in some cases by whether the goods are stainless steel or Other.

Products in this heading

Coach screws
Wood screws
Self-tapping screws, stainless or other
Socket screws and set screws
Hex head bolts and cap screws
Nuts, including lugnuts
Helical spring lock washers
Rivets and cotter pins

How to choose the right subheading

Decide whether the article is threaded or non-threaded; this sets the 7318.1x or 7318.2x group.
Identify the article type: wood screw, self-tapping screw, bolt, nut, washer, rivet or cotter pin.
For screws, bolts and screw hooks, measure the shank or thread diameter: under 6 mm or 6 mm or more.
Check the metal: several lines split stainless steel from Other.
For bolts entered with their nuts or washers in the same shipment, use the 7318.15.20 lines.

Often confused with

Coil springs and leaf springs
Springs and spring leaves have their own heading, not the washer lines of 7318.
Heading 7320
Safety pins and sewing needles
Pins for hand use and safety pins are named in 7319.
Heading 7319
Chain and chain parts
Chain is classified in its own heading regardless of steel type.
Heading 7315
Threaded pipe couplings and elbows
Tube and pipe fittings go to 7307, not to the bolt and nut lines.
Heading 7307
Welded wire fencing and expanded metal
Wire cloth, netting and fencing are covered by 7314.
Heading 7314

Frequently asked questions

What is the HTS code for wood screws?

Other wood screws are classified in 7318.12.00.00, at a general (MFN) rate of 12.5%.

What is the duty on stainless steel self-tapping screws under 6 mm?

Stainless steel self-tapping screws with shanks or threads under 6 mm fall in 7318.14.10.30, at a general (MFN) rate of 6.2%.

How do I classify spring lock washers?

Helical spring lock washers go in 7318.21.00.30, at a general (MFN) rate of 5.8%; other spring and lock washers go in 7318.21.00.90 at the same rate.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.