Description
Description
Flat Head Counter Sunk Screw with Hexagon Drive | SS 304 & SS 316 – MKM Fastener IND LLC
MKM Fastener IND LLC offers precision-engineered Flat Head Counter Sunk Screws with Hexagon Drive, designed for flush surface installation and a clean, professional finish. These screws are ideal for applications requiring strong, reliable fastening where the head must sit flush with or below the surface.
Manufactured using premium stainless steel grades SS 304 / SS 304L (A2) and SS 316 / SS 316L (A4), these screws offer excellent corrosion resistance and high tensile strength, making them suitable for use in marine, chemical, industrial, and architectural environments.
Compliant with DIN 7991 / ISO 10642 dimensional standards and ISO 3506-1 mechanical standards, these screws are designed for precision, durability, and superior performance.
Product Specifications:
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Product Name: Flat Head Counter Sunk Screw with Hexagon Drive
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Thread Type: Metric
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Dimensional Standards: DIN 7991 / ISO 10642
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Mechanical Standard: ISO 3506-1
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Marking Grades & Tensile Strength:
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A2-070: Min 700 MPa (SS 304 / SS 304L)
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A2-080: Min 800 MPa (SS 304 / SS 304L)
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A4-070: Min 700 MPa (SS 316 / SS 316L)
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A4-080: Min 800 MPa (SS 316 / SS 316L)
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Size Range: M5 to M12
Features:
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Flat head allows for a smooth surface finish
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Internal hex drive ensures easy and secure installation
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High corrosion resistance for long-term durability
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Available in multiple grades and sizes to meet diverse industry needs
Choose MKM Fastener IND LLC for premium-grade Flat Head Counter Sunk Screws that meet international standards for strength, safety, and quality.
| THREAD TYPE | DIMENSIONAL STANDARD | MECHANICAL STANDARD | MARKING | TENSILE STRENGTH | MATERIAL | SIZE RANGE |
|---|---|---|---|---|---|---|
| METRIC | DIN 938 | ISO 3506 -1 | A2-70 | Min 700 Mpa | SS 304 / SS 304L | Range: M6-M24 AND 1/4″ TO 1″ |
| A2-80 | Min 800 Mpa | |||||
| A4-70 | Min 700 Mpa | SS 316 / SS 316L | ||||
| A4-80 | Min 800 Mpa | |||||
| DIN 939 | ISO 3506 -1 | A2-70 | Min 700 Mpa | SS 304 / SS 304L | ||
| A2-80 | Min 800 Mpa | |||||
| A4-70 | Min 700 Mpa | SS 316 / SS 316L | ||||
| A4-80 | Min 800 Mpa |



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