I. Differences between self-tapping screws and ordinary screws
Structural design:
Self-tapping screws: Self-tapping screws are a type of screw with a special thread design. Their threads are usually thicker and have a larger pitch, enabling them to drill into the material during installation and form a matching thread. Additionally, the heads of self-tapping screws are typically designed as conical or with cutting edges, making it easier to penetrate the material.
Ordinary screws: Ordinary screws, on the other hand, adopt a more traditional thread design. Their threads are fine and have a smaller pitch, requiring pre-drilling and tapping the material before the screw can be inserted. The head shapes of ordinary screws are diverse, including flat heads, round heads, hexagonal heads, etc., to accommodate different installation needs.
Usage:
Self-tapping screws: The usage of self-tapping screws is relatively simple. They do not require pre-drilling or tapping, and can simply be screwed into the material. These screws are typically installed using electric screwdrivers or pneumatic screwdrivers, which can significantly increase installation efficiency.
Ordinary screws: The installation process of ordinary screws is relatively complex. Pre-drilling and tapping the material are required before screwing the screw in. Although ordinary screws can also be installed using screwdrivers, their installation efficiency is lower compared to self-tapping screws.
Applicable environments:
Self-tapping screws: Self-tapping screws are particularly suitable for connecting non-metallic or soft metal materials, such as wood, plastic, and aluminum alloy. These materials tend to form matching threads when compressed by the screw, achieving a tight connection.
Ordinary screws: Ordinary screws are more suitable for connecting harder metal materials, such as steel and stainless steel. These materials are less prone to deformation when compressed by the screw, so pre-drilling and tapping are required for connection.
II. Differences in application scenarios
Application scenarios of self-tapping screws:
Home decoration: Self-tapping screws have extensive applications in home decoration, such as furniture installation, wall hanging decoration, and window and door installation. These scenarios require screws to be able to quickly and easily fix materials without excessive pre-processing of the materials.
Automobile manufacturing: In the automotive manufacturing process, self-tapping screws are widely used to connect plastic parts, fiber boards, and aluminum alloys. These materials tend to form matching threads when compressed by the screw, achieving a secure connection.
Shipbuilding: In shipbuilding, self-tapping screws are also commonly used to connect steel plates, steel frames, and other components. These screws can quickly and easily fix materials, improving the efficiency of shipbuilding.
Application scenarios of ordinary screws:
Mechanical manufacturing: In the mechanical manufacturing field, ordinary screws are widely used due to their high strength and reliability. They are used to connect various mechanical equipment and components to ensure the stability and safety of the equipment.
Construction: In the construction field, ordinary screws are also commonly used to connect steel structures, concrete, and other hard materials. These screws can withstand large tensile and shear forces, ensuring the stability and safety of the building structure.
Electronics: In the electronics manufacturing process, ordinary screws are also used to fix circuit boards, shells, and other components. These screws provide stable connections and support, ensuring the reliability and durability of electronic products.
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