S-91263A879 M5 x 18 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 with 120,000 psi tensile strength and Class 10.9 rating 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 control with 3mm hex drive design that prevents cam-out and ensures secure fastening
- Optimized thread engagement with fully threaded M5 coarse pitch (0.8mm) for faster assembly and strong holding power
- Flush mounting capability with standard 90° flat head profile that sits perfectly countersunk for smooth surface finishes
- Consistent dimensional accuracy maintained through Class 6g thread fit and DIN 7991 specifications
- Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Class 10.9 metric flat head screws deliver exceptional mechanical performance where reliability is critical. The zinc-plated alloy steel construction provides superior corrosion protection in manufacturing equipment, automotive assemblies, and machinery frames. The fully threaded M5 x 0.8mm coarse pitch design ensures rapid installation and maximum thread engagement in various materials, while the hex drive configuration prevents stripping during high-torque applications. With Rockwell C32 hardness and precise DIN 7991 compliance, these screws maintain dimensional stability under vibration and heavy loads, solving common fastener failure points in industrial settings.
Specification Summary & Compliance
This M5 flat head screw features precise Class 6g thread fit tolerance with 18mm length and fully threaded coarse pitch (0.8mm) configuration. Manufactured to DIN 7991 specifications with 90° countersink angle and right-hand threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory compliance for industrial distribution and use.
