Iron or steel; threaded self-tapping screws

HS v2017 Code: 731814

About iron or steel; threaded self-tapping screws

HS code 731814 covers iron or steel threaded self-tapping screws, a critical component in a wide range of industries. These fasteners are used to securely join materials, making them essential for construction, automotive, electronics, and numerous other manufacturing sectors. As a versatile and high-demand product, threaded self-tapping screws play a vital role in the global economy, facilitating the assembly of a diverse array of goods and infrastructure.

Production process

Threaded self-tapping screws are typically produced through a combination of metalworking processes. The raw material, usually iron or steel, is first cut or stamped into the desired screw shape. The threads are then formed either by rolling or cutting, creating the distinctive spiral pattern that allows the screw to be driven into materials without the need for a pre-drilled hole. Finally, the screws may undergo additional finishing steps, such as heat treatment or surface coating, to enhance their strength, corrosion resistance, or aesthetic appeal.

Production inputs

The primary inputs for the production of HS code 731814 items are iron or steel raw materials, as well as specialized metalworking machinery and tools. Manufacturers may also require additional resources, such as lubricants, cutting fluids, and protective coatings, depending on the specific production processes and desired product characteristics.

Production outputs

Threaded self-tapping screws produced under HS code 731814 are widely used as fasteners in a variety of industries. They are commonly found in 732690 Other articles of iron or steel, 870829 (Parts and accessories of bodies (including cabs) for motor vehicles), and 853690 Electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits, for a voltage not exceeding 1,000 V, among other applications. The versatility of these screws ensures a consistent demand across numerous manufacturing and construction sectors.

Revisions to 731814

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 731814. The most recent 1 version of this code (731814) is in the HS v2022 system:

This page shows a legacy version of code 731814 ( HS v2017).

Newer versions
Older versions

Family tree for iron or steel; threaded self-tapping 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/v2017/731814'>731814: Iron or steel; threaded self-tapping screws</a>"]

    B --> D["<a href='/classifications/hs/v2017/731811'>731811: Iron or steel; threaded coach screws</a>"]
B --> E["<a href='/classifications/hs/v2017/731812'>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/v2017/731815'>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
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class E level6
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class G level6
class H level6
class I level6
class J level6
class K level6
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  class C highlight

  %% class A level1
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  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
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