Iron or steel; threaded wood screws other than coach screws

HS v2017 Code: 731812

About iron or steel; threaded wood screws other than coach screws

HS code 731812 covers the classification of iron or steel threaded wood screws, excluding coach screws. These fasteners are essential components in a wide range of industries, from construction and furniture manufacturing to DIY projects and home repairs. Their versatility and durability make them a crucial part of the global hardware and fastener supply chain, supporting economic activities across multiple sectors.

Production process

The production of iron or steel threaded wood screws typically involves a multi-step process. First, the raw materials, such as steel wire or bar, are cut and formed into the desired screw shape. The threads are then created through a threading process, which can be done mechanically or using specialized threading machines. Finally, the screws may undergo additional finishing steps, such as heat treatment or coating, to enhance their strength, corrosion resistance, or aesthetic appeal.

Production inputs

The main inputs required for the production of HS code 731812 items include steel wire or bar, as well as various machinery and equipment for the cutting, forming, and threading processes. Manufacturers may also utilize specialized tools, dies, and molds to ensure consistent quality and precision. Additionally, energy sources, such as electricity or natural gas, are needed to power the production equipment.

Production outputs

The primary output of HS code 731812 is iron or steel threaded wood screws, which are used in a wide range of applications. These screws are commonly consumed by industries such as 441110 Wood Furniture Manufacturing, 236 Construction of Buildings, and 238 Specialty Trade Contractors, where they are used for assembling and securing various wood-based components. The output of this industry may also be used in the production of other hardware items, such as 731815 Iron or steel; other wood screws.

Revisions to 731812

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 731812. The most recent 1 version of this code (731812) is in the HS v2022 system:

This page shows a legacy version of code 731812 ( HS v2017).

Older versions

Family tree for iron or steel; threaded wood screws other than coach screws

    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/v2017/731812'>731812: Iron or steel; threaded wood screws other than coach screws</a>"]

    B --> D["<a href='/classifications/hs/v2017/731811'>731811: Iron or steel; threaded coach screws</a>"]
B --> E["<a href='/classifications/hs/v2017/731813'>731813: Iron or steel; threaded screw hooks and screw rings</a>"]
B --> F["<a href='/classifications/hs/v2017/731814'>731814: Iron or steel; threaded self-tapping screws</a>"]
B --> G["<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 --> H["<a href='/classifications/hs/v2017/731816'>731816: Iron or steel; threaded nuts</a>"]
B --> I["<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 --> 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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    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



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class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M level6
class N level6

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  %% class B,C level2
  %% class D,E,F,G,H,I level2
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  %% class C highlight