S-91263A494 M12 x 40 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional load-bearing capability with Class 12.9 strength grade and 170,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in harsh industrial environments
- Precise installation and removal with 8mm hex drive design providing secure tool engagement and reduced slipping
- Optimized thread engagement with M12 coarse thread (1.75mm pitch) and Class 5g6g fit ensuring quick assembly and vibration resistance
- Maximum material contact through flat head design with 90° countersink angle for flush mounting and improved load distribution
- Enhanced durability with Rockwell C39 hardness maintaining structural integrity under repeated stress and impact
- Full regulatory compliance meeting DIN 7991 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M12 flat head screws deliver critical performance where high tensile strength and corrosion resistance are paramount. The zinc-plated alloy steel construction provides superior protection against environmental degradation, while the fully threaded design with coarse metric threading ensures rapid installation and secure fastening in structural assemblies, machinery, and equipment frames. The Class 12.9 strength rating combined with Rockwell C39 hardness addresses common failure points in vibration-intensive environments, making these hex drive screws ideal for automotive, construction, and manufacturing applications requiring reliable, long-term fastening solutions that withstand extreme operational demands.
Specification Summary & Compliance
This metric flat head screw features precise Class 5g6g thread fit according to ISO standards, ensuring dimensional accuracy and compatibility with standard metric components. Manufacturing complies with DIN 7991 specifications for consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, confirming adherence to international regulatory standards for hazardous substance restrictions.
