HS Code for Steel bolts

Steel bolts are classified under HS code 7318.15, which covers threaded screws and bolts of iron or steel, whether or not they are imported with their nuts or washers. This classification is part of Chapter 73, which encompasses articles of iron or steel, distinguishing finished products from the raw materials found in Chapter 72. The primary criteria for classification under 7318.15 are that the item must be made of iron or steel and must possess threads. Bolts are defined as headed and threaded fasteners designed to be inserted through holes in assembled parts and tightened by a nut. This subheading is quite broad and includes a wide variety of industrial and construction fasteners. The material composition (non-stainless steel) and the presence of a shank with external threads are the decisive factors. Even if the bolt is specialized for automotive or aerospace use, it remains under this code unless it is specifically excluded by the Section or Chapter notes of the Harmonized System.

Products Included

• Hexagonal head bolts made of carbon steel
• Carriage bolts for timber construction
• Machine screws with threaded shanks
• Stud bolts used in high-pressure piping
• Socket head cap screws

Common Misclassification

Steel bolts are often confused with 7318.16, which is the specific code for nuts. While bolts and nuts are often used together, if they are imported separately, they must be classified under their respective codes. Another common error is using 7318.14 for self-tapping screws, which have a different thread profile designed to cut their own hole. If the bolt is made of stainless steel, it should be classified under 7318.15.30 (in some regional tariffs) or specifically identified as stainless within the 7318.15 hierarchy.

FAQ

What is the HS code for steel bolts?

The international HS code for threaded steel bolts and screws is 7318.15.

Are nuts and washers included in the bolt HS code?

If nuts and washers are presented together with the bolts in a single shipment and in corresponding quantities, they are generally classified together under 7318.15. If shipped separately, nuts are 7318.16 and washers are 7318.21.