S-91420A446 M6 x 50 mm DIN 965 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Exceptional holding power with 60,000 psi tensile strength and Rockwell B71 hardness for reliable, vibration-resistant fastening
• Effortless installation with No. 3 Phillips drive and standard flat head profile that sits flush for clean, snag-free surfaces
• Optimized thread engagement with Class 6h metric coarse threads ensuring precise fit and reduced cross-threading risk
• Maximum grip length through fully threaded 50 mm design, providing consistent clamping force across materials
• Secure countersinking with 90° angle for stable, flush mounting in pre-drilled applications
• Global compliance assurance meeting DIN 965 standards plus RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

These M6 flat head screws deliver critical performance where surface flushness and corrosion resistance are paramount. The zinc-plated steel construction provides essential protection against oxidation in manufacturing equipment, electrical enclosures, and assembly line fixtures. With 1 mm coarse thread pitch and Class 6h thread fit, installation is accelerated while maintaining precision alignment in metal, plastic, and composite materials. The fully threaded design ensures uniform stress distribution, preventing joint loosening under vibration - a common failure point in industrial machinery. The 90° countersink angle creates seamless transitions in countersunk holes, eliminating protrusions that could interfere with moving components or create safety hazards.

Specification Summary & Compliance

This metric screw features M6 x 1 mm coarse threads with Class 6h thread fit per ISO metric standards, ensuring dimensional accuracy and interchangeability. Manufacturing follows DIN 965 specifications for flat head screws, guaranteeing consistent geometry and performance. Regulatory compliance includes RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) for chemical safety, making these screws suitable for global industrial supply chains.