S-91304A151 M8 x 12 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress applications, preventing fastener failure.
- Superior corrosion resistance from the blue-dyed zinc plating protects against rust and extends service life in harsh environments.
- High-strength Class 10.9 rating and Rockwell C32 hardness provide dependable durability for heavy-duty industrial assemblies.
- Precision Class 6g thread fit and coarse 1.25mm pitch enable quick, secure installation and reduced assembly time.
- 90° countersink angle and flat head design allow for a flush, unobtrusive finish that enhances safety and aesthetics.
- 5mm hex drive offers easy, slip-resistant torque application with standard tools, improving installation efficiency.
- Full compliance with DIN 7991/ISO 10642, RoHS 3, and REACH ensures adherence to international quality and environmental standards.
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these M8 flat head screws are crafted from alloy steel and finished with a blue-dyed zinc plating that not only resists corrosion but also provides visual identification for quality control. The fully threaded design and coarse thread pitch ensure maximum grip and vibration resistance in materials like metal and hard plastics, reducing the risk of loosening under dynamic loads. With a 90° countersink angle, they sit flush in pre-drilled holes, ideal for machinery, automotive, and construction applications where surface smoothness and safety are critical. This combination of high tensile strength and precise metric threading addresses common issues like joint failure and assembly inefficiency, delivering long-term reliability.
Specification Summary & Compliance
This fastener features an M8 x 1.25mm coarse thread with Class 6g tolerance for precise fit, and a length of 12mm. It meets DIN 7991 / ISO 10642 specifications for dimensional accuracy and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms it is free of hazardous substances, supporting sustainable procurement practices.
