S-91263A845 M8 x 25 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance through zinc plating that extends service life in demanding industrial environments
- Precise Class 6g thread fit ensures smooth installation and secure fastening in metric assemblies
- Optimized drive engagement with 5mm hex drive for maximum torque transfer and reduced tool slippage
- Full threading design provides consistent clamping force along the entire 25mm length
- Enhanced durability with Rockwell C32 hardness that maintains fastener integrity under repeated stress
- Standardized dimensions per DIN 7991/ISO 10642 for guaranteed interchangeability and compatibility
Professional Applications & Engineering Value
These Class 10.9 flat head screws deliver critical engineering solutions where high tensile strength and precise flush mounting are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, automotive assemblies, and structural frameworks exposed to harsh conditions. The M8 x 1.25mm coarse pitch threading ensures rapid installation while maintaining vibration resistance, significantly reducing assembly time in production environments. The 90° countersink angle creates seamless surface finishes, eliminating protrusions in precision equipment. These fully threaded fasteners distribute clamping force evenly, preventing joint failure in critical applications where safety and reliability are non-negotiable.
Specification Summary & Compliance
Manufactured to DIN 7991/ISO 10642 standards with Class 6g thread tolerance for precise metric fitment. The M8 x 1.25mm coarse thread configuration with right-hand threading follows international metric specifications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The Class 10.9 strength rating and Rockwell C32 hardness verify consistent performance meeting industrial quality requirements.
