Small screws are screws with relatively small sizes used to fasten machinery and components. Generally, they refer to screws with diameters ranging from 1mm to 12mm, which are widely used in precision instruments and household appliances. Small screws consist of a threaded part (male thread) and a head, serving the purpose of fastening materials.

Overview of Small Screws

Features and Primary Applications

Small screws are used in various hidden areas of equipment, devices, and everyday items, regardless of scale. As the name suggests, small screws generally have thread diameters of up to φ12mm and are used for fastening in precision equipment. Depending on the required application, differences in head shape, thread standards, materials, and surface treatments are utilized.

Main Materials and Manufacturing Methods

The primary material is iron, but depending on the application, standardized products made from stainless steel, brass, titanium, aluminum, and resin are also available. For small screws, manufacturing is primarily done through cold forging and thread rolling, though some are also produced using machining processes.

The Role of Small Screws

Role in Assembly

Small screws play a crucial role in assembling delicate parts and machines, often used in areas not visible to the general public. They are essential components in products requiring precise movements or design, such as fixing circuit boards in electronic devices, assembling medical equipment, and other precision instruments.

Types of Small Screws

Depending on differences in head shapes or special functions, there are various types of small screws, such as pan, flat, truss, tamper-proof, and fall-prevention screws. Some representative examples include:

– Pan Head Screws
– Flat Head Screws
– Oval Flat Head Screws
– Truss Screws
– Bind Screws
– Upset Screws
– Combination Screws (SEMS Screws)
– Fall-Prevention Screws
– Air Vent Bolts/Screws
– Tamper-Proof Screws

Conclusion

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