S-91304A113 M4 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 demanding applications, reducing the risk of 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 provides excellent load-bearing capacity, ideal for critical structural and mechanical assemblies.
- Precise Class 6g thread fit guarantees smooth installation and secure fastening, minimizing assembly time and improving joint integrity.
- Fully threaded coarse pitch design allows for quick engagement and strong holding power in various materials.
- Hex drive (2.5mm) enables easy installation with standard tools, reducing slippage and enhancing torque application.
- Compliance with DIN 7991/ISO 10642 standards ensures consistent quality and interchangeability in international projects.
Professional Applications & Engineering Value
This M4 flat head screw is engineered from blue-dyed zinc-plated alloy steel to address common industrial challenges such as vibration loosening and environmental degradation. The Class 10.9 strength grade and Rockwell C32 hardness provide exceptional durability under high-stress conditions, making it suitable for machinery, automotive components, and electronic enclosures where reliable metric coarse threading is essential. The flat head profile with a 90° countersink ensures a flush finish, reducing protrusion risks in assembled structures. Its fully threaded and right-hand thread design offers consistent clamping force, while the hex drive simplifies maintenance in tight spaces, enhancing overall efficiency in industrial fastening solutions.
Specification Summary & Compliance
This fastener features precise M4 x 0.7mm coarse threading with a Class 6g thread fit per ISO standards, ensuring dimensional accuracy and compatibility. It adheres to DIN 7991 and ISO 10642 manufacturing specifications for flat head screws, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in global supply chains.
