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What is a DIN 7985 A4 Stainless Phillips Pan Head Machine Screw?
DIN 7985 machine screws are metric fasteners featuring a pan head with a Phillips drive. The pan head has a broad, slightly domed profile with a flat bearing surface underneath, providing an attractive finished appearance while distributing clamping force over a larger contact area than countersunk screws. The Phillips drive allows for quick, reliable installation using widely available tools, making these screws suitable for both manual and automated assembly.
Screw length is measured from underneath the head to the tip. DIN 7985 screws are designed for use with tapped holes or metric machine thread nuts. They are also known as Phillips pan head machine screws, cross recessed pan head screws, Phillips machine screws, and pan head metric screws.
What material is a DIN 7985 A4 Phillips machine screw made from?
DIN 7985 screws are manufactured from A4 stainless steel (SAE Type 316 stainless steel), commonly referred to as marine-grade stainless steel. A4 stainless steel provides outstanding resistance to corrosion, saltwater, chlorides, moisture, and many chemicals, making it the preferred material for demanding outdoor, marine, and chemical environments.
The natural stainless finish offers long-term durability while maintaining a clean, professional appearance with minimal maintenance. The Phillips drive provides quick, dependable installation using commonly available tools for production, maintenance, and repair applications.
Why choose an A4 stainless DIN 7985 Phillips machine screw?
A4 stainless DIN 7985 screws combine exceptional corrosion resistance with reliable fastening performance and an attractive finished appearance. Compared to A2 stainless steel, A4 offers significantly greater resistance to saltwater, chlorides, and aggressive chemicals, making it the preferred choice for coastal, marine, food processing, pharmaceutical, and chemical processing environments.
The pan head distributes clamping force over a larger surface without requiring a countersunk hole, while the Phillips drive provides fast, dependable installation using standard tools. Together, these features make DIN 7985 screws ideal for demanding applications requiring long-term durability.
Where are DIN 7985 A4 stainless Phillips machine screws commonly used?
DIN 7985 A4 stainless Phillips pan head machine screws are widely used in marine equipment, offshore installations, food processing machinery, pharmaceutical equipment, chemical processing plants, water treatment facilities, renewable energy systems, architectural hardware, transportation equipment, outdoor construction, and industrial machinery.
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