S-91263A915 M8 x 22 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 tensile strength of 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the zinc-plated alloy steel construction, extending service life in harsh industrial environments.
- High hardness rating of Rockwell C32 provides excellent wear resistance and durability under repetitive loads.
- Coarse 1.25mm thread pitch allows for faster installation and better grip in softer materials, improving assembly efficiency.
- Fully threaded design offers consistent clamping force along the entire length, enhancing joint stability.
- Hex drive (5mm) enables secure tool engagement and high torque application, minimizing stripping and ensuring tight fastening.
- Compliance with DIN 7991 and environmental standards guarantees consistent quality and safe use in regulated industries.
Professional Applications & Engineering Value
This M8 flat head screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, automotive frameworks, and structural steel connections. The zinc-plated alloy steel material combats corrosion, while the Class 10.9 strength grade and fully threaded coarse pitch design ensure secure fastening under dynamic loads and vibrations. The flat head with standard profile and 90° countersink angle allows for flush mounting, reducing protrusion risks and improving safety. By meeting DIN 7991 specifications, it delivers precise dimensional accuracy and reliability, making it a trusted choice for engineers seeking durable, high-performance metric screws that minimize maintenance and downtime.
Specification Summary & Compliance
This fastener adheres to Class 6g thread fit for precise metric threading, with a coarse 1.25mm pitch and right-hand thread direction. It conforms to DIN 7991 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
