S-91304A176 M12 x 40 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
- Superior corrosion resistance thanks to the blue-dyed zinc plating, extending service life in harsh industrial environments.
- Exceptional strength and reliability with a Class 10.9 rating and 120,000 psi tensile strength, ideal for high-stress applications.
- Consistent and secure fastening ensured by the M12 coarse thread with a 1.75mm pitch and Class 6g fit for easy assembly and vibration resistance.
- Enhanced durability and wear resistance from Rockwell C32 hardness, maintaining performance under heavy loads.
- Efficient installation and flush finish with a standard flat head profile, 90° countersink angle, and 8mm hex drive for quick, tool-friendly use.
- Full-threaded design provides maximum grip and holding power along the entire 40mm length for robust connections.
- Compliance with international standards including DIN 7991/ISO 10642, ensuring quality and interchangeability in global projects.
Professional Applications & Engineering Value
This M12 flat head screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, automotive frameworks, and structural supports. The blue zinc-plated alloy steel construction offers excellent corrosion resistance, reducing maintenance needs in humid or corrosive settings. With a Class 10.9 strength grade and coarse metric thread, it delivers reliable clamping force and vibration resistance, preventing loosening in dynamic environments. The fully threaded design and standard flat head ensure a secure, flush fit, making it ideal for applications where surface smoothness and high tensile demands are paramount, such as in construction and manufacturing equipment.
Specification Summary & Compliance
This fastener adheres to precise metric dimensions, including a 40mm length, M12 thread size with 1.75mm pitch, and Class 6g thread fit for consistent tolerance. It meets DIN 7991 and ISO 10642 standards for flat head screws, ensuring dimensional accuracy and performance reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms its environmental safety and suitability for regulated industries.
