S-91304A104 M3 x 16 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with blue-dyed zinc plating, ideal for harsh industrial environments
• Exceptional tensile strength of 120,000 psi from Class 10.9 alloy steel for reliable load-bearing applications
• Precise Class 6g thread fit ensures smooth installation and secure fastening in metric assemblies
• Optimized coarse thread pitch (0.5 mm) enables rapid installation and reduced cross-threading risks
• Full threading along the 16 mm length provides maximum grip and adjustment flexibility
• Compact 2 mm hex drive allows easy access in confined spaces with standard tools
• 90° countersink angle creates a flush, professional finish for streamlined surfaces

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M3 flat head screws combine Class 10.9 high-strength alloy steel with blue-dyed zinc plating to solve critical challenges in machinery, automotive, and electronics assembly. The fully threaded coarse pitch metric design resists vibration loosening while the flat head profile eliminates protrusions in precision equipment. With Rockwell C32 hardness and 120,000 psi tensile strength, they maintain integrity under extreme stress, making them ideal for high-tensile fastening where reliability and corrosion resistance are paramount.

Specification Summary & Compliance

Manufactured to DIN 7991 / ISO 10642 standards with Class 6g thread tolerance for precision fit. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features metric coarse threading (M3 x 0.5 mm), right-hand thread direction, and 16 mm length with fully threaded construction for consistent performance across industrial applications.