S-91263A464 M6 x 18 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Class 12.9 strength rating and 170,000 PSI tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating on alloy steel, extending service life in harsh industrial environments
• Precision thread engagement with Class 5g6g fit and coarse 1mm pitch ensuring secure fastening and vibration resistance
• Optimized installation efficiency featuring 4mm hex drive and standard flat head profile for flush mounting and easy torque application
• Full-thread design advantage providing maximum grip length and uniform stress distribution along the entire 18mm shaft
• Enhanced material durability with Rockwell C39 hardness maintaining structural integrity under repeated stress cycles
• Regulatory compliance assurance meeting DIN 7991 specifications while being RoHS 3 and REACH compliant for global applications

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M6 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 Class 12.9 rating ensures reliable performance in structural assemblies, machinery, and equipment subjected to extreme loads. The fully threaded design with coarse pitch metric threading offers excellent pull-out resistance and simplifies installation in various materials. The 90° countersink angle and flat head profile enable flush mounting in precision applications, making these hex drive screws ideal for automotive, manufacturing, and construction sectors requiring DIN 7991 compliant fastening solutions.

Specification Summary & Compliance

These metric flat head screws feature precise M6x1mm coarse thread with Class 5g6g thread fit tolerance, ensuring consistent performance across industrial applications. Manufactured to DIN 7991 specifications, the fasteners maintain dimensional accuracy with 18mm length and 12mm head diameter. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance. The Class 12.9 strength classification and Rockwell C39 hardness verify mechanical performance standards for critical fastening requirements.