S-91304A156 M8 x 35 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Class 10.9 strength grade provides superior load-bearing capacity and fatigue resistance, ideal for critical structural assemblies.
- Blue-dyed zinc-plated alloy steel offers enhanced corrosion resistance and visual part identification, streamlining inventory management.
- Hex drive design with 5mm drive size allows for secure tool engagement and efficient installation, minimizing slippage and assembly time.
- Fully threaded M8 coarse thread with Class 6g fit ensures consistent engagement and vibration resistance in various materials.
- 90° countersink angle and flat head profile enable flush mounting for a clean, professional finish and improved aerodynamics.
- Compliance with DIN 7991/ISO 10642 standards guarantees dimensional accuracy and interchangeability in metric fastener systems.
Professional Applications & Engineering Value
These M8 flat head screws are engineered to address common industrial challenges such as vibration loosening and material fatigue. The Class 10.9 high-strength alloy steel construction, combined with a blue zinc plating surface treatment, provides excellent durability against environmental exposure while maintaining Rockwell C32 hardness. The coarse thread with 1.25mm pitch and Class 6g thread fit ensures quick assembly and reliable holding power in metals, plastics, and composite materials. Ideal for machinery, automotive, and structural frameworks, these fully threaded screws with hex drive facilitate efficient maintenance and reduce downtime in production environments.
Specification Summary & Compliance
This metric flat head screw features M8 x 1.25mm coarse threading with Class 6g thread fit tolerance, ensuring precise engagement. Manufactured to DIN 7991 and ISO 10642 specifications for dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.
