S-91420A112 M3 x 4 mm DIN 965 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Zinc-plated steel construction provides reliable protection against rust, extending service life in demanding industrial environments.
• Optimized Drive Engagement: Phillips No. 1 drive ensures secure tool engagement, reducing the risk of cam-out and damage during installation.
• Superior Tensile Performance: 60,000 psi tensile strength and Rockwell B71 hardness deliver dependable clamping force and resistance to mechanical stress.
• Precision Thread Fit: Class 6h coarse thread (M3 x 0.5mm) enables quick, secure fastening with excellent vibration resistance in various materials.
• Flush Mounting Design: Standard 90° countersink angle and flat head profile allow for a smooth, unobtrusive finish in countersunk applications.
• Full Thread Engagement: Fully threaded 4mm length maximizes grip and load distribution across the entire fastener.
• Global Compliance Assurance: Meets DIN 965 specifications and environmental standards (RoHS 3, REACH) for safe, reliable use in regulated industries.

Professional Applications & Engineering Value

Engineered for precision assembly, these M3 flat head screws solve critical challenges in electronics, machinery, and automotive applications where space constraints and vibration are concerns. The zinc-plated steel material combats environmental degradation, while the coarse pitch metric thread (0.5mm) ensures rapid installation and superior holding power in softer substrates like plastics and aluminum. The Phillips No. 1 drive provides controlled torque transmission, minimizing strip-out risks during high-volume production. With a fully threaded 4mm length and 90° countersink angle, they deliver consistent flush mounting in pre-drilled holes, eliminating protrusions that could interfere with moving components or aesthetic requirements.

Specification Summary & Compliance

This fastener maintains Class 6h thread fit per ISO metric standards, ensuring precise dimensional accuracy for consistent performance. Manufacturing adheres to DIN 965 specifications for flat head screw geometry and drive compatibility. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for environmentally responsible sourcing and use in global industrial supply chains.