S-91263A446 M4 x 30 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
- Exceptional Load-Bearing Capacity: Class 12.9 rating and 170,000 psi tensile strength ensure reliable performance in high-stress industrial environments.
- Superior Corrosion Resistance: Zinc-plated alloy steel construction provides durable protection against rust and environmental degradation.
- Optimized Fastening Efficiency: M4 coarse threading (0.7mm pitch) enables quick installation and secure grip in various materials.
- High Durability Under Stress: Rockwell C39 hardness maintains structural integrity and prevents stripping under repeated torque.
- Secure Hex Drive Engagement: 2.5mm hex drive offers precise torque application and reduces tool slippage during installation.
- Standardized Flat Head Design: Flush seating (90° countersink) creates smooth surfaces ideal for machinery and assembly applications.
- Regulatory Compliance Assurance: Meets DIN 7991 specifications and environmental standards (RoHS 3/REACH) for global supply chain compatibility.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M4 flat head screws deliver critical reliability where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel material combats corrosion in harsh environments, while the Class 12.9 strength grade prevents fastener failure under dynamic loads. The coarse thread (0.7mm pitch) ensures rapid assembly in metal frameworks and equipment housings, reducing installation time. With partial threading and 14mm minimum thread length, these screws provide concentrated clamping force for machinery, automotive components, and structural assemblies, solving common issues of loosening and material fatigue.
Specification Summary & Compliance
This fastener maintains Class 5g6g thread fit tolerance per metric standards, ensuring precise engagement. Manufacturing adheres to DIN 7991 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safe use in regulated industries.
