The usage method of the Self-drilling screws 

Self-drilling screws, also known as self-tapping screws or drill-point screws, are uniquely designed to drill holes and form internal threads directly without the need for pre-drilling, achieving efficient fastening. Here is an overview of the wide application areas of self-drilling screws and the correct installation steps for stainless steel self-drilling screws:

Application fields

Construction industry: Widely used for fixing color steel tiles in steel structure buildings and thin plates in simple buildings, it is particularly suitable for scenarios where holes cannot be pre-drilled on site.

Furniture manufacturing: It plays a crucial role in fixing wooden boards and strips of furniture, such as connecting table legs and chair bases.

The door and window industry: It is used for the installation, splicing, assembly, connection of components and other decoration and renovation projects of aluminum alloy doors and windows, etc.

Automobile manufacturing: The automotive industry uses self-tapping screws for the fastening and connection of various components.

Household appliances: They are also indispensable in the fastening and connection of household appliance components.

Aerospace and aviation: Suitable for fastening lightweight materials to ensure the safety of aerospace and aviation equipment.

Other industries: Widely used for fastening connections of aluminium profiles, wood products, thin-walled steel pipes, steel plates and non-ferrous metal plates.

Steps for Correctly Installing Stainless Steel Self-Tapping Screws

Prepare the tools: Select a dedicated electric drill with appropriate power (600W is recommended), and have the suitable socket or Phillips screwdriver bit ready.

Adjust the speed: According to the material of the screw (such as 304 or 410) and its model (such as Φ4.2, Φ4.8, etc.), adjust the electric drill to an appropriate speed.

Vertical alignment: Align the screw and the drill vertically with the working surface to ensure the accuracy of the starting position for installation.

Apply force: Before starting the electric drill, apply approximately 13 kilograms of vertical downward force on the electric drill, keeping it aligned with the center point.

Continuous operation: Turn on the power switch and keep operating until the screw is fully drilled in and tightened. Be careful to avoid underdriving or overdriving.

Select the appropriate screws: Choose the suitable screw material (such as 304 for softer materials and 410 for harder materials) and model based on the material hardness and plate thickness.

Pay attention to the type of screw tip: Make sure the screw tip is designed as a self-tapping or pointed tip to ensure it can drill, thread and lock smoothly.

Operation Precautions: Avoid exceeding the recommended speed range of the electric drill. Do not use the impact mode to prevent damage to the screws.

By following the above steps and precautions, the correct installation of stainless steel self-tapping screws can be ensured, improving work efficiency and ensuring the firmness of the connection.