S-91263A432 M3 x 16 mm DIN 7991 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
- Maximum Load-Bearing Capacity: Class 12.9 grade provides exceptional tensile strength (170,000 psi) for high-stress applications, reducing failure risks.
- Superior Corrosion Resistance: Zinc-plated alloy steel construction ensures reliable performance in harsh industrial environments.
- Precision Hex Drive Engagement: 2mm hex drive enables secure tool fitting and high torque application without stripping.
- Optimized Thread Design: Coarse M3 x 0.5mm threads with Class 5g6g fit ensure quick assembly and vibration resistance.
- Flush Mounting Capability: Standard 90° flat head profile allows countersunk installation for smooth surface finishes.
- Full-Length Threading: 16mm fully threaded design maximizes grip strength across the entire fastener length.
- Regulatory Compliance: Meets DIN 7991 standards and environmental regulations (RoHS 3/REACH) for global supply chain compatibility.
Professional Applications & Engineering Value
These M3 flat head screws deliver critical engineering solutions where space constraints and structural integrity are paramount. The zinc-plated alloy steel construction combined with Class 12.9 strength rating (Rockwell C39 hardness) addresses common failure points in heavy machinery, automotive assemblies, and precision equipment. The hex drive design prevents cam-out during high-torque installation, while the coarse metric threading ensures rapid assembly in production environments. The fully threaded configuration provides uniform stress distribution, making these industrial fasteners ideal for applications requiring vibration resistance and long-term reliability under dynamic loads.
Specification Summary & Compliance
Manufactured to DIN 7991 specifications with Class 5g6g thread fit tolerance ensuring precise engagement. The M3 x 0.5mm coarse thread maintains ISO metric standards while the 16mm length provides consistent dimensional accuracy. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe usage across regulated industries.
