S-93395A400 M8 x 12 mm DIN 7991 Stainless Steel Hex Drive Flat Head Screws
Stainless 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
- Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh chemical and marine environments
- High mechanical strength with 70,000 psi tensile strength, providing reliable fastening in demanding industrial applications
- Precision thread fit with Class 6g tolerance and coarse 1.25mm pitch, ensuring smooth installation and secure connections
- Optimized flush mounting with 90° countersink angle and flat head design, creating seamless surfaces in assembled components
- Secure torque transmission through 5mm hex drive, preventing cam-out and enabling high-tightening forces
- Full thread engagement along the entire 12mm length, maximizing pull-out resistance and load distribution
- Regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and material traceability
Professional Applications & Engineering Value
This M8 flat head screw delivers exceptional engineering value in corrosive environments where material integrity is critical. The 316 stainless steel composition, enhanced by passivated finish, provides superior protection against chloride-induced stress corrosion cracking, making it ideal for chemical processing equipment, marine hardware, and food processing machinery. The DIN 7991 standard ensures dimensional consistency and mechanical reliability, while the hex drive design enables high torque application without stripping. The fully threaded configuration and coarse thread pitch facilitate rapid installation in various substrates, reducing assembly time while maintaining vibration resistance in dynamic load conditions common in industrial automation and structural frameworks.
Specification Summary & Compliance
This metric fastener features M8 x 1.25mm coarse threads with Class 6g tolerance according to ISO metric thread standards. The flat head design incorporates a 90° countersink angle with head diameter of 16mm (±0.43mm tolerance) and 4.4mm head height. Manufacturing complies with DIN 7991 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for industrial safety and environmental protection.
