Iron or steel; threaded self-tapping screws

HS v2022 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 play a vital role in the assembly and construction of various products, from furniture and electronics to automotive and aerospace applications. The global demand for self-tapping screws is driven by the continuous need for secure and reliable connections in a diverse array of manufacturing and assembly processes.

Production process

The production of iron or steel threaded self-tapping screws typically involves a multi-step process. First, the raw material, either iron or steel, is sourced and prepared. The material is then cut, shaped, and threaded using specialized machinery, such as screw-making machines or cold-heading equipment. The threading process can be accomplished through various methods, including rolling, cutting, or forming. Finally, the screws may undergo additional finishing steps, such as heat treatment or surface coating, to enhance their durability and corrosion resistance.

Production inputs

The primary inputs required for the production of HS code 731814 items are iron or steel raw materials, as well as specialized machinery and tools for the manufacturing process. Manufacturers may also rely on various lubricants, coatings, and other consumables to ensure the quality and performance of the final products. Additionally, skilled labor, including machinists and quality control personnel, is essential for the efficient and consistent production of these threaded self-tapping screws.

Production outputs

The primary output of HS code 731814 is iron or steel threaded self-tapping screws, which are widely used in a variety of industries. These fasteners are often consumed by manufacturers of 732690 Other articles of iron or steel, 940320 Metal furniture, and 854430 Ignition wiring sets and other wiring sets for vehicles, aircraft or ships, among others. The versatility and reliability of these self-tapping screws make them an indispensable component in the assembly and construction of a wide range of products.

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 version):

This page shows the most recent version of code 731814.

Family tree for iron or steel; threaded self-tapping screws

    graph LR
    A["<a href='/classifications/hs/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7318'>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/v2022/731814'>731814: Iron or steel; threaded self-tapping screws</a>"]

    B --> D["<a href='/classifications/hs/v2022/731811'>731811: Iron or steel; threaded coach screws</a>"]
B --> E["<a href='/classifications/hs/v2022/731812'>731812: Iron or steel; threaded wood screws other than coach screws</a>"]
B --> F["<a href='/classifications/hs/v2022/731813'>731813: Iron or steel; threaded screw hooks and screw rings</a>"]
B --> G["<a href='/classifications/hs/v2022/731815'>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/v2022/731816'>731816: Iron or steel; threaded nuts</a>"]
B --> I["<a href='/classifications/hs/v2022/731819'>731819: Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1</a>"]
B --> J["<a href='/classifications/hs/v2022/731821'>731821: Iron or steel; non-threaded spring washers and other lock washers</a>"]
B --> K["<a href='/classifications/hs/v2022/731822'>731822: Iron or steel; non-threaded washers, excluding spring and lock</a>"]
B --> L["<a href='/classifications/hs/v2022/731823'>731823: Iron or steel; non-threaded rivets</a>"]
B --> M["<a href='/classifications/hs/v2022/731824'>731824: Iron or steel; non-threaded cotters and cotter-pins</a>"]
B --> N["<a href='/classifications/hs/v2022/731829'>731829: Iron or steel; non-threaded articles, n.e.c. in item no. 7318.2</a>"]

    

    %% Color coordination by level

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    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
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

  class C highlight

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