S-91263A836 M5 x 25 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength grade and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by zinc-plated alloy steel construction, extending service life in harsh industrial environments
• Precision thread engagement with M5 x 0.8mm coarse pitch and Class 6g thread fit ensuring secure fastening and vibration resistance
• Optimized flush mounting through flat head design with 90° countersink angle for seamless surface integration
• Efficient installation and removal via 3mm hex drive, enabling quick assembly with standard tools
• Enhanced durability with Rockwell C32 hardness maintaining structural integrity under repeated stress
• Versatile partial threading combining 16mm threaded section with 25mm total length for flexible application across various material thicknesses

Professional Applications & Engineering Value

This high-strength metric flat head screw addresses critical engineering challenges in heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, equipment frames, and structural assemblies exposed to demanding environmental conditions. Engineered with M5 coarse threading and Class 6g thread fit, these fasteners deliver superior grip strength in both metallic and composite materials, preventing loosening under dynamic loads. The partially threaded design allows for precise clamping force distribution, making these hex drive screws ideal for automotive components, industrial machinery, and construction applications where reliable metric fasteners are required to maintain long-term assembly integrity.

Specification Summary & Compliance

Manufactured to precise metric dimensions with M5 x 0.8mm coarse pitch threading and Class 6g thread tolerance ensuring compatibility with standard metric components. These flat head screws conform to DIN 7991/ISO 10642 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety, providing assurance for use in regulated industries and international markets.