Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1

HS v2017 Code: 731819

About iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1

HS code 731819 covers a wide range of threaded iron or steel fasteners, including screws, bolts, and nuts that are not specifically classified elsewhere. These products are essential components in a variety of industries, from construction and manufacturing to automotive and machinery. As a crucial part of the global supply chain, the trade and production of these fasteners play a significant role in the broader economy.

Production process

The production of threaded iron or steel fasteners typically involves several key steps. First, the raw materials, such as steel wire or bar, are cut and formed into the desired shape using various metalworking techniques, including stamping, forging, or machining. The threads are then cut or rolled onto the fasteners, often using specialized threading equipment. Finally, the fasteners may undergo additional finishing processes, such as heat treatment or surface coating, to enhance their strength, durability, and corrosion resistance.

Production inputs

The main inputs required for the production of HS code 731819 items include iron or steel raw materials, such as wire, bar, or sheet. Specialized machinery, such as threading machines, stamping presses, and heat treatment equipment, are also essential. Additionally, various consumables, such as lubricants, cutting tools, and protective coatings, are necessary for the manufacturing process.

Production outputs

The primary outputs of HS code 731819 are threaded iron or steel fasteners, including screws, bolts, and nuts. These products are widely used in a variety of industries, including 732690 Other articles of iron or steel, 842199 Parts for machinery used in the manufacture of pulp, paper or paperboard, and 870829 (Parts and accessories of bodies (including cabs) for motor vehicles), among others.

Revisions to 731819

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 731819. The most recent 1 version of this code (731819) is in the HS v2022 system:

This page shows a legacy version of code 731819 ( HS v2017).

Older versions

Family tree for iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1

    graph LR
    A["<a href='/classifications/hs/v2017/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2017/7318'>7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel</a>"]
B --> C["<a href='/classifications/hs/v2017/731819'>731819: Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1</a>"]

    B --> D["<a href='/classifications/hs/v2017/731811'>731811: Iron or steel; threaded coach screws</a>"]
B --> E["<a href='/classifications/hs/v2017/731812'>731812: Iron or steel; threaded wood screws other than coach screws</a>"]
B --> F["<a href='/classifications/hs/v2017/731813'>731813: Iron or steel; threaded screw hooks and screw rings</a>"]
B --> G["<a href='/classifications/hs/v2017/731814'>731814: Iron or steel; threaded self-tapping screws</a>"]
B --> H["<a href='/classifications/hs/v2017/731815'>731815: Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers</a>"]
B --> I["<a href='/classifications/hs/v2017/731816'>731816: Iron or steel; threaded nuts</a>"]
B --> J["<a href='/classifications/hs/v2017/731821'>731821: Iron or steel; non-threaded spring washers and other lock washers</a>"]
B --> K["<a href='/classifications/hs/v2017/731822'>731822: Iron or steel; non-threaded washers, excluding spring and lock</a>"]
B --> L["<a href='/classifications/hs/v2017/731823'>731823: Iron or steel; non-threaded rivets</a>"]
B --> M["<a href='/classifications/hs/v2017/731824'>731824: Iron or steel; non-threaded cotters and cotter-pins</a>"]
B --> N["<a href='/classifications/hs/v2017/731829'>731829: Iron or steel; non-threaded articles, n.e.c. in item no. 7318.2</a>"]

    

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