Introduction

As an internal hexagonal cylindrical head screw that complies with the DIN912 standard, Dacromet-coated Hex Socket Head Cap Screw is known for its excellent performance and wide range of application scenarios. Dacromet-coated Hex Socket Head Cap Screws are made of high-strength steel, ensuring excellent mechanical performance and the ability to withstand large tensile and shear forces, making them an ideal choice for industrial fasteners. Compared with traditional electroplating processes, Dacromet treatment is not only environmentally friendly, but also effectively avoids hydrogen embrittlement problems and extends the service life of screws. Dacromet-coated Hex Socket Head Cap Screws have become one of the indispensable fasteners in modern industry due to their reliability, durability, and environmental friendliness.

Parameter (Specification)

Feature And Application

• All sizes are available in stock, including M3 to M12
• The screw strength reaches 12.9 levels, meeting the high demands of customers
• Quality can be guaranteed, and packaging will only be done after a series of tests
• Affordable and cost-effective

As a high-performance hexagonal socket head screw, the surface of Dacromet-coated Hex Socket Head Cap Screw is treated with Dacromet to form a composite coating composed of zinc, aluminum, and chromate, providing excellent corrosion resistance and effectively resisting salt spray, acid rain and chemical corrosion. It is particularly suitable for use in humid, high temperature or harsh environments. Secondly, the Dacromet coating also has good heat resistance, which can work stably in high temperature environments for a long time, while avoiding the hydrogen embrittlement problem that may be caused by traditional electroplating processes, further improving the reliability and service life of screws. In terms of application, Dacromet-coated Hex Socket Head Cap Screws are widely used in fields such as automotive manufacturing, construction engineering, power equipment, bridge construction, and marine engineering. For example, in the automotive industry, it is used for fastening engines, chassis and body structures; In construction engineering, it is used for connecting steel structures and installing curtain walls; In ocean engineering, its excellent corrosion resistance makes it an ideal choice for offshore platforms and ship equipment. In short, Dacromet-coated Hex Socket Head Cap Screws have become an indispensable fastener solution in modern industry due to their high corrosion resistance, heat resistance, environmental friendliness, and high strength.

Details

Unlike traditional galvanized finishes, Dacromet provides a smoother surface with minimal visible grain structure for Dacromet-coated Hex Socket Head Cap Screws. The coating appears semi-glossy under direct light, with a subtle metallic sheen that distinguishes it from painted finishes. Color consistency is maintained across all surfaces, including threads and recesses, due to the immersion application process. The surface of Dacromet-coated Hex Socket Head Cap Screws may show faint mottling or slight color variations, characteristic of the baked-on coating technology. Microscopic examination reveals the layered flake structure that contributes to its corrosion resistance while maintaining a relatively flat visual profile.

Dacromet-coated Hex Socket Head Cap Screws offer exceptional corrosion resistance, significantly outperforming traditional zinc plating. This coating provides excellent resistance to salt spray, making it ideal for marine and coastal applications. Unlike conventional coatings, Dacromet maintains its protective qualities even when scratched, due to its self-healing properties from chromate components. Dacromet-coated Hex Socket Head Cap Screws demonstrate superior performance in high-temperature environments, withstanding temperatures up to 300°C without degradation. Their excellent adhesion to the base metal prevents flaking or peeling during installation or use. Furthermore, the coating process is environmentally friendly, containing no heavy metals and producing minimal hazardous waste.