S-91263A835 M5 x 20 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 and Class 10.9 grade, ensuring reliable performance in high-stress applications
- Superior corrosion resistance from zinc-plated alloy steel construction, extending service life in harsh industrial environments
- Precise flush mounting with 90° countersink angle and standard flat head profile for seamless surface integration
- Optimized thread engagement through partial threading design, reducing installation time while maintaining secure fastening
- Secure torque transmission via 3mm hex drive, preventing tool slippage during high-torque applications
- Consistent dimensional accuracy with Class 6g thread fit, ensuring reliable compatibility with metric components
- Regulatory compliance assurance meeting DIN 7991/ISO 10642 standards for quality and international regulatory requirements
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M5 flat head screws solve critical fastening challenges where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, automotive assemblies, and outdoor equipment, while the Class 10.9 strength rating ensures reliable performance under dynamic loads. The partial threading design allows for precise clamp force control in multi-material assemblies, and the 90° countersink angle creates flush surfaces that eliminate protrusions in precision equipment. These metric screws deliver consistent performance in manufacturing fixtures, heavy-duty enclosures, and structural frameworks where failure is not an option.
Specification Summary & Compliance
Manufactured to exacting DIN 7991/ISO 10642 standards with Class 6g thread tolerance for precision fit. Features M5 x 0.8mm coarse thread configuration with 20mm overall length and 16mm minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The Rockwell C32 hardness rating confirms consistent material properties throughout the fastener.
