S-91420A542 M8 x 40 mm DIN 965 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion protection through zinc plating, ensuring long-term reliability in demanding industrial environments
• Superior holding power with 60,000 psi tensile strength and Rockwell B71 hardness for secure, vibration-resistant fastening
• Optimized installation efficiency with Phillips No. 4 drive and standard flat head profile for quick, flush-mounted assemblies
• Precise thread engagement with Class 6h fit and M8x1.25mm coarse threading for faster installation and reduced cross-threading risks
• Full-length threading provides maximum grip along the entire 40mm shaft for superior load distribution
• Standardized 90° countersink angle ensures seamless surface finishing in compliant applications
• Regulatory compliance assurance meeting DIN 965 specifications plus RoHS 3 and REACH environmental standards

Professional Applications & Engineering Value

These zinc-plated steel flat head screws deliver critical performance advantages in industrial assembly where corrosion resistance, strength, and flush mounting are paramount. The combination of M8 coarse threading (1.25mm pitch) with Class 6h thread fit ensures rapid installation while maintaining precise tolerances, significantly reducing assembly time in high-volume production. The fully threaded design maximizes surface contact for superior load distribution in sheet metal, machinery, and equipment applications. The 90° countersink angle and Phillips No. 4 drive work in concert to create seamless, vibration-resistant joints that maintain integrity under the 60,000 psi tensile strength rating. These DIN 965 compliant screws solve common engineering challenges including galvanic corrosion, thread stripping, and surface protrusion in automotive, electrical enclosures, and structural assemblies.

Specification Summary & Compliance

Manufactured to DIN 965 standards with precise Class 6h thread fit and M8x1.25mm coarse metric threading. Features include 40mm fully threaded length, 14.5mm head diameter, and standard flat head profile with 90° countersink angle. Material specifications include zinc-plated steel construction with Rockwell B71 hardness and 60,000 psi tensile strength. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.