DIN 7982 2.5mm Diameter Countersunk Phillips/Cross Recessed Drive Self-tapping Screws

Standardization and Quality Assurance:

DIN7982 is a German industrial standard. Choosing screws that meet this standard means selecting products that have undergone strict quality control and standardization. This helps ensure the quality and performance of the screws, thereby enhancing the reliability and safety of the overall product.

Convenient Installation Method:

• The cross-recessed design allows the screws to be easily tightened using a regular screwdriver or power tool, improving installation efficiency.
• The countersunk design enables the screw head to sink completely into the material surface, maintaining a flat installation surface while avoiding possible damage or inconvenience caused by protruding screw heads.

Wide Applicability and Compatibility:

• DIN7982 standard screws are available in various sizes, such as ST2.2 to ST6.3, suitable for materials of different thicknesses and hardness, providing greater flexibility.
• Due to their self-tapping nature, these screws can be installed directly without pre-drilling or tapping, simplifying the workflow.

Combination of Aesthetics and Practicality:

• The head of the countersunk screw does not protrude from the installation surface, maintaining the overall aesthetics, especially suitable for applications that require attention to appearance.
• Simultaneously, its cross-recessed design ensures convenient and practical operation.

Multiple Material and Surface Treatment Options:

• DIN7982 standard screws can be made of various materials, such as stainless steel, carbon steel, etc., to meet different corrosion resistance and strength requirements.
• Surface treatments like galvanizing or nickel plating further enhance the screw's corrosion resistance and service life.

Application Scenarios:

• Machinery Manufacturing: Used to fix and connect various components in machinery manufacturing and maintenance.
• Architectural Engineering: Can be used to fix boards, decorative strips, and other materials in construction projects.
• Furniture Production: Used to connect wood or other materials during furniture manufacturing, ensuring structural stability.
• Electronic Equipment: Used to fix circuit boards or other internal components, ensuring stable equipment operation.
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• Thread Size	ST2.2 ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 ST5.5 ST6.3
  P Pitch a max dk max=nominal size min k ≈ y max Type C Type F Socket No. M1 ≈ M2 ≈	0.8 1.1 1.3 1.3 1.4 1.6 1.8 1.8 0.8 1.1 1.3 1.3 1.4 1.6 1.8 1.8 4.3 5.5 6.8 7.5 8.1 9.5 10.8 12.4 4 5.2 6.44 7.14 7.74 9.14 10.37 11.97 1.3 1.7 2.1 2.3 2.5 3 3.4 3.8 2 2.6 3.2 3.5 3.7 4.3 5 6 1.6 2.1 2.5 2.7 2.8 3.2 3.6 3.6 1 1 2 2 2 2 3 3 2.5 3 4.2 4.6 4.7 5.1 6.8 7.1 2.4 2.8 4 4.2 4.4 5 6.3 7

Jiangsu Ying Yan Fastening System Technology Co. Ltd was founded in 2002. It is located in Wujiang Fenhu High-tech Industrial Development Zone, Suzhou City. It has a superior geographical location and convenient transportation. It is a professional fastener manufacturer integrating R&D, production and sales manufacturer. The company has established a complete quality management system, invested heavily in the establishment of R&D technology centers, introduced high-tech talents, and used the ERP system for efficient and orderly management. The company has been adhering to the principle of mutual benefit and win-win cooperation with customers from different industries for many years. The value and significance of an enterprise do not lie in the so-called success for a while, but in the ability to create more social value and assume social responsibility while continuously creating economic value.

In the 24 years of development, Jiangsu Ying Yan Fastening System Technology Co. Ltd has always adhered to the development concept of "creating excellent quality with the heart of a craftsman", and also adhered to the operating principle of "innovation, quality, service, gratitude" to absorb New ideas, strict quality control, all-round service for the purpose. With the continuous development and growth of the company, we will continue to pursue the above concepts, principles and purposes, use the wisdom created by ingenuity to create fastener products, provide competitive industrial product solution services, and continue to create the greatest value for customers. Value, become the ultimate choice for end customers.

Persevere in building Yingyan fastening system technology into a benchmark enterprise in the domestic and foreign fastener industry, and write the industry legend of domestic fastener products!